If the daily windows of the last 4 are 1000,1200,1300 and 2000,
it can be concluded that the average sales for that period was:
A) 5,500
B) 1,375
C) 1,200
D) not sufficient information

Answers

Answer 1

The average sales for that period is 1375.

The average, also known as the mean, is a statistical measure that represents the central tendency of a set of values. It is calculated by summing up all the values in a dataset and dividing the sum by the total number of values.

Mathematically, the average (mean) is calculated as:

Average = (Sum of all values) / (Total number of values)

To calculate the average sales for the given period, you'll need to follow these steps:

1. Add up the daily sales figures: 1000 + 1200 + 1300 + 2000 = 5500

2. Count the number of days in the period: 4 days

3. Divide the total sales by the number of days to find the average: 5500 / 4 = 1375

So, the average sales for that period is 1375.

Therefore, the correct answer is: B) 1,375

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Related Questions

Hiya! I just wanted to know what form of equation this is because I'm kinda braindead :D


A plane flies 528 miles an hour, how many miles an hour would it take for it to be 1100 miles an hour?

Answers

It would take 2.083 hours to cover 1100 miles.

We have,

Speed= 528 mph

Distance = 1100 miles

Using speed = Distance/ time

So, Time = Distance/ speed

Time = 1100 / 528

Time = 2.083 hour

Thus, the time taken 2.083 hour.

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You may need to use the appropriate technology to answer this question.
A poll surveyed people in six countries to assess attitudes toward a variety of alternate forms of energy. Suppose the data in the following table are a portion of the poll's findings concerning whether people favor or oppose the building of new nuclear power plants.
Response Country
Great
Britain France Italy Spain Germany United
States
Strongly favor 298 161 141 128 133 204
Favor more than oppose 309 368 348 272 222 326
Oppose more than favor 219 334 381 322 311 316
Strongly oppose 221 215 217 389 443 174
(a)
How large was the sample in this poll?
answer=
(b)
Conduct a hypothesis test to determine whether people's attitude toward building new nuclear power plants is independent of country.
State the null and alternative hypotheses.
H0: The attitude toward building new nuclear power plants is not independent of the country.
Ha: The attitude toward building new nuclear power plants is independent of the country.
H0: The attitude toward building new nuclear power plants is independent of the country.
Ha: The attitude toward building new nuclear power plants is not independent of the country.
H0: The attitude toward building new nuclear power plants is not mutually exclusive of the country.
Ha: The attitude toward building new nuclear power plants is mutually exclusive of the country.
H0: The attitude toward building new nuclear power plants is mutually exclusive of the country.
Ha: The attitude toward building new nuclear power plants is not mutually exclusive of the country.
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
Reject H0. We cannot conclude that the attitude toward building new nuclear power plants is independent of the country.
Reject H0. We conclude that the attitude toward building new nuclear power plants is not independent of the country.
Do not reject H0. We cannot conclude that the attitude toward building new nuclear power plants is independent of the country.
Do not reject H0. We conclude that the attitude toward building new nuclear power plants is not independent of the country.
(c)
Using the percentage of respondents who "strongly favor" and "favor more than oppose," which country has the most favorable attitude toward building new nuclear power plants?
Great Britain
France
Italy
Spain
Germany
United States
Which country has the least favorable attitude?
Great Britain
France Italy
Spain
Germany
United States

Answers

With 65.2% of respondents opposing more than favoring or strongly opposing building new nuclear power plants.

(a) To find the sample size, we need to add up the number of respondents in each category across all six countries:

298 + 161 + 141 + 128 + 133 + 204 + 309 + 368 + 348 + 272 + 222 + 326 + 219 + 334 + 381 + 322 + 311 + 316 + 221 + 215 + 217 + 389 + 443 + 174 = 5005

So the sample size was 5005.

(b) We can use a chi-squared test of independence to determine whether attitudes toward building new nuclear power plants are independent of country. The null hypothesis is that the attitudes are not independent of country, and the alternative hypothesis is that they are independent.

Using a calculator or software, we can find the test statistic and p-value:

Test statistic: 154.95

p-value: 1.239e-28 (or approximately 0)

With a very small p-value, we reject the null hypothesis and conclude that attitudes toward building new nuclear power plants are not independent of country.

(c) To find the country with the most favorable attitude, we can add up the percentages of respondents who "strongly favor" and "favor more than oppose" for each country:

[tex]Great Britain: \frac{298}{976} = 30.5%[/tex]

[tex]France: \frac{529}{1367} = 38.7%[/tex]

[tex]Italy: \frac{489}{1248} = 39.2%[/tex]

[tex]Spain: \frac{400}{1042} = 38.4%[/tex]

[tex]Germany: \frac{355}{962} = 36.9%[/tex]

[tex]United States: \frac{530}{1335} = 39.7%[/tex]

So Italy has the most favorable attitude, with 39.2% of respondents strongly favoring or favoring more than opposing building new nuclear power plants.

To find the country with the least favorable attitude, we can add up the percentages of respondents who "oppose more than favor" and "strongly oppose" for each country:

[tex]Great Britain: \frac{527}{976} = 54.0%[/tex]

[tex]France: \frac{549}{1367} = 40.1%[/tex]

[tex]Italy: \frac{703}{1248} = 56.3%[/tex]

[tex]Spain: \frac{633}{1042} = 60.7%[/tex]

[tex]Germany: \frac{627}{962} = 65.2%[/tex]

[tex]United States: \frac{391}{1335} = 29.3%[/tex]

So Germany has the least favorable attitude, with 65.2% of respondents opposing more than favoring or strongly opposing building new nuclear power plants.

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(1 point) let f(x)=4(sin(x))x. Find f′(3). F′(3)=

Answers

The value of the given equation in the given case can be represented as -

 [tex]f'(3)[/tex] = -11.316.

To find f'(x), we can use the product rule:

[tex]f(x) = 4x(sin(x))\\f'(x) = 4(sin(x)) + 4x(cos(x))[/tex]

To find [tex]f'(3[/tex]), we plug in x = 3:

[tex]f'(3) = 4(sin(3)) + 4(3)(cos(3))\\\\f'(3) = 4(0.141) + 4(3)(-0.990)\\f'(3) = 0.564 - 11.88\\f'(3) = -11.316[/tex]

n other words, to take the derivative of a product of two functions, we multiply the derivative of the first function by the second function, and add it to the product of the first function and the derivative of the second function.

Therefore,[tex]f'(3)[/tex] = -11.316.

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44 students complete some homework and the histogram shows information about the time taken. work out the estimate of the interquartile range. in the working you must show the upper and lower quartiles.

Answers

It can be seen that the range is 19 minutes  

How to solve

From the given data, we can see:

1.4 × 5 = 7

0.8 × 10 = 8

1.4 × 10 = 14

1 × 15 = 15

15 + 14 + 8 + 7 = 44

44 ÷ 4 = 11

LQ of 44=11

LQ = 10 minutes

11 × 3 = 33 UQ = 29 minutes

Therefore, it can be seen that the range is 19 minutes  

Range is the aggregate of conceivable output values in a function. Any inputs within its domain can be used to compute the range, which is viewed as a pivotal aspect when assessing the behavior and properties of functions. Additionally, it is regularly incorporated in describing the spread and variability of data sets in statistics.

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A scientist claims that only 67% of geese in his area fly south for the winter. He tags 60 random geese in the summer and finds that 17 of them do not fly south in the winter. If a = 0.05, is the scientist's belief warranted? A) Yes, because the test value 0.77 is in the noncritical region.
B) No, because the test value 0.85 is in the critical region.
C) No, because the test value -0.77 is in the noncritical region.
D) Yes, because the test value -0.85 is in the noncritical region.

Answers

The answer is: A) Yes, because the test value 1.15 is in the noncritical region.

To determine if the scientist's belief is warranted, we need to conduct a hypothesis test using the given information. Here are the steps:

1. State the null hypothesis (H0) and alternative hypothesis (H1):
H0: p = 0.67 (67% of geese fly south)
H1: p ≠ 0.67 (the percentage is not 67%)

2. Determine the sample proportion (p-hat) and sample size (n):
[tex]p-hat = \frac{(16-17)}{60} = \frac{43}{60} = 0.717[/tex]
n = 60

3. Calculate the test statistic (z):
[tex]z= \frac{(p-hat  -  p )}\sqrt{\frac{p(1-p)}{n} }[/tex]
[tex]z= \frac{0.717-0.67}{\sqrt{\frac{0.67(0.33)}{60} } }[/tex]
z =1.15

4. Determine the critical region using the significance level (a):
a = 0.05
Since this is a two-tailed test, we divide α by 2 and find the critical values of z. In this case, the critical values are approximately -1.96 and 1.96.

5. Compare the test statistic to the critical values:
Our test statistic (z = 1.15) falls in the noncritical region (-1.96 < 1.15 < 1.96).

Based on these results, the answer is:
A) Yes, because the test value 1.15 is in the noncritical region.

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Solve the following equations
2.1.1) 2x - 5 = 5x + 16

Answers

the answer to your math question is x=-7

A cab company charges a $4 boarding rate in addition to its meter which is $1. 50 for every mile. Write a linear equation which models this. Use the equation to determine the total fare for a trip that is 2 miles, 3 miles and 5 miles

Answers

The linear equation that models the cab fare is: f(5) = 1.5(5) + 4 = 11.5 dollars

An equation is said to be linear if the maximum power of the variable is consistently 1. Another name for it is a one-degree equation. A linear equation with one variable has the conventional form Ax + B = 0. In this case, the variables x and A are variables, whereas B is a constant.

The equation for a linear equation in one variable is written as ax+b = 0, where a and b are two integers, and x is a variable. This equation has just one solution. For instance, the linear equation 2x+3=8 only has one variable. As a result, this equation has a single solution, x = 5/2.

Here f(x) = 1.5x + 4

where x is the number of miles.

To find the total fare for a 2-mile trip:

f(2) = 1.5(2) + 4 = 7 dollars

To find the total fare for a 3-mile trip:

f(3) = 1.5(3) + 4 = 7.5 dollars

To find the total fare for a 5-mile trip:

f(5) = 1.5(5) + 4 = 11.5 dollars

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The question is based on the information provided below:
From a group of seven people – $\text{J, K, L, M, N, P}$ and $\text{Q}$ – exactly four will be selected to attend a diplomat’s retirement dinner. Selection must conform the following conditions:
Either $\text{J}$ or $\text{K}$ must be selected, but $\text{J}$ and $\text{K}$ cannot both be selected
Either $\text{N}$ or $\text{P}$ must be selected, but $\text{N}$ and $\text{P}$ cannot both be selected
$\text{N}$ cannot be selected unless $\text{L}$ is selected
$\text{Q}$ cannot be selected unless $\text{K}$ is selected
If $\text{P}$ is not selected to attend the retirement dinner, then exactly how many different groups of four are there each of which would be an acceptable selection?
A. one
B. two
C. three
D. four

Answers

D. four. we can see that there are exactly four different groups of four that can be formed while adhering to the given conditions.

To answer this question, we need to find the number of different groups of four that can be formed while adhering to the given conditions for attending the retirement dinner.

1. Either J or K must be selected, but not both.
2. Either N or P must be selected, but not both.
3. N cannot be selected unless L is selected.
4. Q cannot be selected unless K is selected.

Let's find the different acceptable groups step by step:

Case 1: J is selected, P is selected
- J, P, L, M (L must be selected since N is not selected)

Case 2: J is selected, N is selected
- J, N, L, M (L must be selected because of condition 3)

Case 3: K is selected, P is selected
- K, P, L, M (Q cannot be selected because P is selected)

Case 4: K is selected, N is selected
- K, N, L, Q (L must be selected because of condition 3, and Q can be selected because of condition 4)

From the four cases listed, we can see that there are exactly four different groups of four that can be formed while adhering to the given conditions.

Your answer: D. four

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In a sample of 10 randomly selected women, it was found that their mean height was 63.4 inches. From previous studies, it is assumed that the standard deviation is 2.4. Construct the 95% confidence interval for the population mean.
95% Confidence Intervals:
The formula for calculate a 95% confidence interval is as follows:
Lower Bound = Point Estimate - (1.96)(s√n)
Upper Bound = Point Estimate + 1.96)(s√n)
Note that the sample size is represented by the letter n and the standard deviation of the sample is represented by the letter s. The point estimate value for this interval is equal to the value for the mean of the sample.

Answers

The 95% confidence interval for the population mean is approximately (61.91 inches, 64.89 inches)

To construct the 95% confidence interval for the population mean, we will use the given information and the formula:

[tex]Lower Bound = Point Estimate - (1.96)(\frac{s}{\sqrt{n} } )[/tex]
[tex]Lower Bound = Point Estimate +(1.96)(\frac{s}{\sqrt{n} } )[/tex]

In this case, the point estimate is the mean height of the sample, which is 63.4 inches. The standard deviation (s) is 2.4, and the sample size (n) is 10. Now we can plug these values into the formula:

[tex]Lower Bound = 63.4 - (1.96)\frac{2.4}{\sqrt{10} }  = 63.4 - (1.96)(0.759) = 63.4 - 1.489 = 61.91[/tex]
[tex]Upper Bound = 63.4 + (1.96)\frac{2.4}{\sqrt{10} }  = 63.4 + (1.96)(0.759) = 63.4 + 1.489 = 64.89[/tex]

Therefore, the 95% confidence interval for the population mean is approximately (61.91 inches, 64.89 inches).

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PLEASE ANSWER QUICK!!!!! 25 POINTS
Find the probability of exactly one successes in five trials of a binomial experiment in which the probability of success is 5%
round to the nearest tenth

Answers

The probability of one success is 0.203625 or 20. 4 %.

How to solve

The probability that there is one success in a binomial probability which has a chance of success of 5 % can be found by the formula :

P ( X = 1) = (5 choose 1) x ( 0.05 ) x  (0.95 ) ⁴

= ( 0.05 ) x  ( 0. 95 ) ⁴

= 0.05 x 0.8145

= 0.040725

Multiplying both gives:

P(X = 1) = 5 x 0.040725

= 0.203625

In conclusion, the probability of one success is 0.203625 or 20. 4 %.

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0ten random numbers are drawn from a uniform distribution on . what is the probability that at least one will exceed 4.55? round your answer to three decimal places.

Answers

The probability that at least one random number is greater than 4.55 is 0.718 (rounded to three decimal places).

The probability of at least one number exceeding 4.55 can be calculated as the complement of the probability that all ten numbers are less than or equal to 4.55.

The probability density function of a uniform distribution on the interval [0, 5] is:

f(x) = 1/5, 0 <= x <= 5

The probability that one number is less than or equal to 4.55 is given by:

P(X <= 4.55) = ∫₀⁴.₅₅ f(x) dx = ∫₀⁴.₅₅ (1/5) dx = (1/5) * (4.55 - 0) = 0.91

So, the probability that all ten numbers are less than or equal to 4.55 is:

P(X₁ <= 4.55, X₂ <= 4.55, ..., X₁₀ <= 4.55) = (0.91)^10 = 0.2824

Therefore, the probability that at least one number exceeds 4.55 is:

P(at least one number > 4.55) = 1 - P(all numbers <= 4.55) = 1 - 0.2824 = 0.7176

So the probability that at least one random number is greater than 4.55 is 0.718 (rounded to three decimal places).

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A researcher wanted to examine whether a higher proportion of people in Toronto owned French bulldogs compared to the proportion of people in Guelph. A random sample of 55 people from Toronto and 62 people from Guelph was taken. The results are as follows: City Sample size # who own French bulldog Toronto 55 15 Guelph 62 10 a. Check the non-skewness criterion using estimates for p and p2 (0.5 marks) b. Conduct a one-sided hypothesis test for whether a higher proportion of people in Toronto own a French bulldog relative to the proportion of people in Guelph. Include null and alternative hypotheses, test statistic, decision and reason for rejection/non-rejection at the 5% level of significance, and a conclusion in terms of the context of the problem.

Answers

The non-skewness criterion using estimates for p₁ and p₂ is 0.21 and null hypothesis test for whether a higher proportion of people in Toronto own a French bulldog relative to the proportion of people in Guelph is Z= 1.47.

A statistical hypothesis known as a null hypothesis asserts that no statistical significance can be found in a collection of provided observations. Using sample data, hypothesis testing is performed to judge a theory' veracity. It is sometimes referred to as the "null," and it is denoted by the symbol H₀.

To determine if a theory regarding markets, investment methods, or economies is correct or wrong, quantitative analysts employ the null hypothesis, often known as the conjecture.

a) n₁ = 55, n₂ = 62

x₁ = 15, x₂ = 10

a) Toronto = [tex]P_1[/tex] = [tex]\frac{x_1}{n_1}[/tex] = 15/55 = 0.27

Guelph = [tex]P_2[/tex] = [tex]\frac{x_2}{n_2}[/tex] = 10/62 = 0.21

P = [tex]\frac{x_1+x_2}{n_1+n_2}[/tex] = 15+10/55+62 = 0.21

b) The null hypothesis

H₀ = P₁ - P₂ = 0

H₁ = P₁-P₂ > 0

Test statistics (Z) = [tex]\frac{(P_1-P_2)-0}{\sqrt{P(1-P)(\frac{1}{n_1}+\frac{1}{n_2}) } }[/tex]

= 0.11/0.075

Z= 1.47.

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determine if the following statements are true or false and explain your reasoning for statements you identify as false if the null hypothesis that the means of four groups are all the same is rejected using anova at a 5% significance level, then... a. (5 points) we can then conclude that all the means are different from one another. b. (5 points) the standardized variability between groups is higher than the standardized variability within groups. c. (5 points) the pairwise analysis will identify at least one pair of means that are significantly different.

Answers

The given null hypothesis statement a. true, statement b. true and finally statement c. true.

a. False. Rejection of the null hypothesis using ANOVA only tells us that at least one group mean is different from the others, but it doesn't necessarily mean that all means are different from each other. Additional post-hoc tests, such as Tukey's HSD or Bonferroni, are needed to identify which specific means are different from each other.

b. True. If the null hypothesis is rejected using ANOVA, it means that there is significant variability between the groups. This variability is measured by the F-statistic, which is the ratio of between-group variability to within-group variability. A high F-statistic indicates that the standardized variability between groups is higher than the standardized variability within groups.

c. True. If the null hypothesis is rejected using ANOVA, it means that there is at least one significant difference between the means of the groups. Pairwise comparisons can be conducted using post-hoc tests to identify which specific pairs of means are significantly different. However, it's important to adjust the significance level for multiple comparisons to avoid making Type I errors.

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The coordinates of the four vertices of quadrilateral ABCD are listed below
4
• A(-3,3)
.
.B(2,6)
. C(5, 1)
. D(-5,-5)
Which statement proves whether or not this quadrilateral is a rectangle?
OA
The slope of CD is-
rectangle
OB The slope of AB is
-5-1
-5-5
OD. The slope of AB is
6-3
2-(-3)
3
5
6-3
2-(-3)
3
and the slope of DA IS
OC. The slope of BC is and the slope of CD is
rectangle
3-(-5)
-3-(-5)
and the slope of BC is These two segments are perpendicular, so the shape is a rectangle.
These two segments are not perpendicular, so the shape is not a
These two segments are not perpendicular, so the shape is not a
and the slope of CD is-7
These two segments are perpendicular, so the shape is a rectangle.

Answers

For the quadrilateral ABCD the statement which proves that this quadrilateral is not a rectangle is (a) The slope of CD is "(-5-1)/(-5-5) = 3/5", and the "slope of DA is [3-(-5)]/[-3-(-5)] = 8/2", these "two-segments" are not perpendicular , so the shape is not a rectangle;

The coordinates of the "four-vertices" of the quadrilateral ABCD are :

A(-3,3), B(2,6), C(5, 1), D(-5,-5);

To prove whether the quadrilateral is a rectangle or not, we need to show that its adjacent sides are perpendicular and its diagonals are congruent.

In this question, we are given the coordinates of the four vertices of the quadrilateral.

To determine if it's a rectangle, we use the slope formula to find the slopes of the sides of the quadrilateral. If slopes of adjacent sides are "negative-reciprocals" of each other, then they are perpendicular. If the slopes of the diagonals are equal, then they are congruent.

Using the given coordinates, we find that the slope of CD is = (-5-1)/(-5-5) = 3/5, and

The slope of DA is = [3-(-5)]/[-3-(-5)] = 8/2. These two slopes are not negative reciprocals of each other, so CD and DA are not perpendicular.

So, the quadrilateral is not a rectangle.

Therefore, the correct option is (a).

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The given question is incomplete, the complete question is

The coordinates of the "four-vertices" of the quadrilateral ABCD are :

A(-3,3), B(2,6), C(5, 1), D(-5,-5);

Which statement proves whether or not this quadrilateral is a rectangle?

(a) The slope of CD is (-5-1)/(-5-5) = 3/5, and the slope of DA is 3-(-5)/-3-(-5)=8/2, these two segments are not perpendicular , so the shape is not a rectangle;

(b) The slope of AB is (6-3)/(2-(-3) = 3/5, and slope of BC is (6-1)/(2-5) = -5/3, these two segments are perpendicular , so the shape is a rectangle;

(c) The slope of BC is (6-1)/(2-5) = -5/3, and slope of CD is (-5-1)/(-5-5) = 3/5, these two segments are not perpendicular, so the shape is not a rectangle;

(d) The slope of AB is (6-3)/(2-(-3) = 3/5, and slope of CD is (-5-1)/(-5-5) = 3/5, these two segments are perpendicular , so the shape is a rectangle;

What is the value of M?

Answers

Answer:

m = 55°

Step-by-step explanation:

The entire angle is a right angle.

Right angles are always equal to 90°

In this picture, the right angle is split in half.

So to find the measure of angle m, we have to subtract 35 from 90.

[tex]90-35\\=55[/tex]

m = 55°

Line G contains the points (-8, 3) and (7, 3). Write the equation of the line that is perpendicular to line G and passes through the point (5, -3).

correct answers = brainliest
completely wrong answers = report

Answers

Answer:

x = 5

Step-by-step explanation:

o find the equation of the line that is perpendicular to line G, we need to find the slope of line G first. The slope of a line can be found using the formula:

slope = (y2 - y1) / (x2 - x1)

where (x1, y1) and (x2, y2) are two points on the line.

Using the points (-8, 3) and (7, 3) on line G, we get:

slope of line G = (3 - 3) / (7 - (-8)) = 0

Since the line we want to find is perpendicular to line G, its slope will be the negative reciprocal of the slope of line G. That is:

slope of perpendicular line = -1 / slope of line G = undefined

An undefined slope means that the line is vertical. Therefore, the equation of the line that is perpendicular to line G and passes through the point (5, -3) is simply:

x = 5

Celine took a total of 45 quizzes in 9 weeks of school. After attending 11 weeks of school, how many total quizzes will Celine have taken? Solve using unit rates.

Answers

Celine will have taken 55 quizzes after attending 11 weeks of school.

In mathematics, an expression is a combination of numbers, variables, and operations that are grouped together to represent a mathematical relationship or quantity.

Celine took 45 quizzes in 9 weeks, so the unit rate is:

45 quizzes / 9 weeks = 5 quizzes per week

If Celine attends 11 weeks of school, we can use the unit rate to find how many total quizzes she will have taken:

Total quizzes = Unit rate × Number of weeks

Total quizzes = 5 quizzes per week × 11 weeks

Total quizzes = 55 quizzes

Therefore, Celine will have taken 55 quizzes after attending 11 weeks of school.

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a city has taxable property assessed at $540000000. To meet expenses, $28000000 must be raised by property tax. What is the decimal tax rate to four places?

Answers

The decimal tax rate to four decimal places is 0.0519.

To find the decimal tax rate, we want to divide the amount of money to be raised by the means of property tax by the assessed cost of taxable assets, and then convert it to a decimal place as it is requested and needed .

Decimal tax charge = (amount of money raised by assets tax / Assessed value of taxable assets)

Decimal tax price = ($28,000,000 / $540,000,000)

Decimal tax fee = zero.0519 (rounded to four decimal places)

Consequently, the decimal tax rate to four decimal places is 0.0519.

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a flywheel in the form of a uniformly thick disk of radius 1.88 m has a mass of 60.1 kg and spins counterclockwise at 207 rpm .

Answers

The flywheel you described is a uniformly thick disk with a radius of 1.88 m and a mass of 60.1 kg. It spins counterclockwise at a rate of 207 rpm (revolutions per minute).

The flywheel in the form of a uniformly thick disk with a radius of 1.88 m has a mass of 60.1 kg and spins counterclockwise at 207 rpm. Since the flywheel is a disk, its moment of inertia can be calculated using the formula I = (1/2)mr^2, where m is the mass of the disk and r is its radius. Using this formula, we can calculate that the moment of inertia of the flywheel is approximately 433.92 kg*m^2. Additionally, since the flywheel spins counterclockwise, it is rotating in the opposite direction of the clockwise motion.

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You can afford monthly deposits of $90 into an account that pays 3.6% compounded monthly. How long will it be until you have $5,800 to buy a boat? Type the number of months: (Round to the next-higher

Answers

Answer:

To solve this problem, you can use the formula for compound interest:

A = P * (1 + r/n)^(n*t)

where:

A is the amount of money you'll have after t years

P is the initial deposit

r is the annual interest rate as a decimal (0.036 in this case)

n is the number of times the interest is compounded per year (12 for monthly compounding)

t is the time in years

You want to find t, so you can rearrange the formula to solve for t:

t = log(A/P) / (n * log(1 + r/n))

Substituting the given values, we get:

t = log(5800/0.01) / (12 * log(1 + 0.036/12))

t ≈ 33.5 months

So it will take about 33.5 months (rounded up to the next-higher month) until you have $5,800 to buy a boat, given monthly deposits of $90 into an account that pays 3.6% compounded monthly.

Step-by-step explanation:

It will take 33 months to save $5,800 for the boat.

We can use the formula for the future value of an annuity due to find how long it will take to save $5,800 with monthly deposits of $90 at an interest rate of 3.6% compounded monthly:

FV = PMT * [(1 + r/n)^(n*t) - 1] / (r/n)

where:

FV = future value (in this case, $5,800)

PMT = monthly deposit ($90)

r = annual interest rate (3.6%)

n = number of compounding periods per year (12 for monthly compounding)

t = time (in years)

Substituting the values given:

5800 = 90 * [(1 + 0.036/12)^(12*t) - 1] / (0.036/12)

Simplifying and solving for t:

(1 + 0.003)^(12t) = (5800 * 0.036 / 90) + 1

(1.003)^12t = 1.1456

12t = log(1.1456) / log(1.003)

t = 32.31 months

Rounding up to the next higher month, we get:

t = 33 months

Therefore, it will take 33 months to save $5,800 for the boat.

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Write the equation of this line in slope intercept form.

Answers

An equation of the line in fully simplified slope-intercept form include the following: y = -6x + 12.

How to determine an equation of this line?

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical expression:

y - y₁ = m(x - x₁)

Where:

x and y represent the data points.m represent the slope.

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (-6 - 12)/(3 - 0)

Slope (m) = -18/3

Slope (m) = -6

At data point (0, 12) and a slope of -6, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 12 = -6(x - 0)  

y - 12 = -6x

y = -6x + 12

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To consider using the bisection method to find the roots of the function f (x) - 3=0, we may

Answers

To consider using the bisection method to find the roots of the function f(x) - 3 = 0, you may follow these steps:

1. First, rewrite the function as f(x) = 3.

2. Choose an interval [a, b] such that f(a) and f(b) have opposite signs, which means that f(a) * f(b) < 0.

3. Calculate the midpoint, c, of the interval [a, b] using the formula c = (a + b) / 2.

4. Evaluate the function at the midpoint, f(c).

5. If f(c) is close enough to the desired root (within a pre-defined tolerance), then c is the approximate root of the function.

6. If f(c) is not close enough to the desired root, update the interval based on the sign of f(c):
  a. If f(c) * f(a) < 0, then the root lies in the interval [a, c]. Update the interval to [a, c].
  b. If f(c) * f(b) < 0, then the root lies in the interval [c, b]. Update the interval to [c, b].

7. Repeat steps 3-6 until the desired accuracy is reached.

By following these steps, you can use the bisection method to find the roots of the function f(x) - 3 = 0.

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Psychologists need to be 95% certain their results didn't occur by chance in order to

Answers

There is only a 5% chance that the observed results occurred randomly, providing greater confidence in the validity of their findings.

Statistical significance is important because it allows psychologists to draw conclusions about the relationship between variables and make generalizations about a population based on the sample they studied.

In order to be 95% certain that psychologists' results didn't occur by chance, they need to achieve a statistical significance level of 0.05.

To be 95% certain that their results didn't occur by chance, psychologists need to achieve a statistical significance level of 0.05.

This means that there is only a 5% chance that the observed results occurred randomly, providing greater confidence in the validity of their findings.

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Scatter plots are used to discover relationships between variables. Using the corresponding measurements of variable1 and variable2 in DATA, plot variable1 vs. variable2 and describe the correlation between variable1 and variable2.
Data Set:
variable1 variable2
-8.78162 18.34055
7.39749 2.85607
3.75278 6.23950
-3.91953 13.58786
-7.62142 18.08145
-4.59753 12.85170
-3.41580 13.45867
-0.28752 8.95585
-8.37001 18.84054
6.00523 3.95631
-3.85438 13.08315
-2.86084 13.53479
4.42861 4.86409
-1.24050 9.81458
-4.80313 15.31168
-5.14316 14.74720
-7.41768 17.07810
-5.39179 15.51509
2.34057 8.38950
-8.82911 19.72766
-1.77868 11.60777
-8.99293 18.44845
-7.83663 18.07113
1.56835 7.71226

Answers

The scatter plot and correlation coefficient show that there is a moderate negative correlation between variable1 and variable2 in this data set.

To create a scatter plot, we need to plot each pair of variable1 and variable2 values as a point on a graph.

Looking at the scatter plot, we can see that there is a negative correlation between variable1 and variable2. As variable1 increases, variable2 generally decreases. However, the correlation is not very strong, as there are many points that do not follow this trend closely.

We can also calculate the correlation coefficient to quantify the strength of the correlation. The correlation coefficient between variable1 and variable2 for this data is approximately -0.51, which confirms that there is a moderate negative correlation between the two variables.

In conclusion, the scatter plot and correlation coefficient show that there is a moderate negative correlation between variable1 and variable2 in this data set.

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Write the pair of fractions as a pair of fractions with a common denominator 2/5 and 8/10

Answers

The fraction that we have would give us the result  6/5.

What is a fraction?

If we talk about a fraction then what we mean is a part of a whole. As such we can be able to find the LCM of the fractions that we have. The meaning of the term LCM is lowest common multiple. In this case, we would need to obtain the lowest common multiple of the fractions that we have so that we can be able to give the common denominator that we are looking for.

As such we have that;

the LCM of 5 and 10 is 10 and thus we would have the LCM as 10.

Therefore;

2/5 + 8/10

= 4 + 8/10

= 12/10

= 6/5

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Determine whether the sequence converges or diverges. If it converges, find the limit. If it diverges write NONE. (-1)"n 72 +5 a = liman 7200 L -/10 Points] DETAILS SCALCCC4 8.1.023. Determine whether the sequence converges or diverges. If it converges, find the limit. If it diverges write NONE. an = n2e-5 lim an 72-00 –/10 points) DETAILS SCALCCC4 8.1.029. Determine whether the sequence converges or diverges. If it converges, find the limit. If it diverges write NONE. (3n - 1)! (3n +1)! limon 7200

Answers

To determine whether the given sequence converges or diverges, we will examine each of the provided sequences and find their respective limits as n approaches infinity.

1. an = (-1)^n

The sequence alternates between -1 and 1 as n increases. Since it does not approach a specific value, the sequence diverges. Your answer for this sequence is NONE.

2. an = n^2 * e^(-n)

To find the limit as n approaches infinity, we can apply L'Hopital's Rule:

lim (n^2) / (e^n) as n approaches infinity.

Applying L'Hopital's Rule twice, we get:

lim (2n) / (e^n) and then lim (2) / (e^n).

As n approaches infinity, the denominator (e^n) increases without bound, so the limit becomes 0. The sequence converges to 0.

3. an = (3n - 1)! / (3n + 1)!

To find the limit as n approaches infinity, let's rewrite the sequence as:

an = 1 / [(3n)(3n + 1)]

As n approaches infinity, the denominator (3n)(3n + 1) increases without bound, and the sequence converges to 0.

In summary:
1. The sequence (-1)^n diverges (NONE).
2. The sequence n^2 * e^(-n) converges to 0.
3. The sequence (3n - 1)! / (3n + 1)! converges to 0.

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Suppose a particle moves back and forth along a straight line with velocity v(t), measured in feet per second, and acceleration a(t). a) What is the meaning of 120 â« v(t) dt? 60 b) What is the meaning of 120 â« |v(t)| dt? 60 c) What is the meaning of 120 â« a(t) dt? 60

Answers

In this case, the displacement of the particle at time t is given by ∫ v(t) dt, and the displacement after 120 seconds is given by ∫_0^120 v(t) dt.

The integral of |v(t)| over the time interval [0, 120] gives the total distance traveled by the particle during that time.

Specifically, the value of the integral gives us the difference between the velocity of the particle at time t=120 and its velocity at time t=0.

a) The integral 120 ∫ v(t) dt represents the displacement of the particle from its starting point after 120 seconds, assuming that its initial displacement is zero. This can be seen by the fundamental theorem of calculus, which states that if F(x) is an antiderivative of f(x), then ∫ f(x) dx = F(b) - F(a), where a and b are the limits of integration. In this case, the displacement of the particle at time t is given by ∫ v(t) dt, and the displacement after 120 seconds is given by ∫_0^120 v(t) dt.

b) The integral 120 ∫ |v(t)| dt represents the distance that the particle travels in 120 seconds. This is because |v(t)| represents the magnitude of the velocity, or speed, of the particle at time t, regardless of its direction. Thus, the integral of |v(t)| over the time interval [0, 120] gives the total distance traveled by the particle during that time.

c) The integral 120 ∫ a(t) dt represents the change in velocity of the particle over the time interval [0, 120]. This can be seen by the fundamental theorem of calculus, which tells us that if f(x) is the derivative of g(x), then ∫ f(x) dx = g(x) + C, where C is a constant of integration. In this case, a(t) is the derivative of v(t), so the integral of a(t) over the time interval [0, 120] gives us the change in velocity of the particle during that time. Specifically, the value of the integral gives us the difference between the velocity of the particle at time t=120 and its velocity at time t=0.

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You have a right triangle whose short leg is the length of a dry-erase marker and whose long leg is the length of the whiteboard on your table. Describe a mathematical method for accurately determining the smallest angle of this triangle.

Answers

To determine the smallest angle of the right triangle, you can use the inverse tangent function, also known as arctan.
First, measure the lengths of the short leg (the dry-erase marker) and the long leg (the whiteboard on your table). Let's call the length of the short leg "a" and the length of the long leg "b".
Then, use the formula:
tan(theta) = a/b
This formula relates the tangent of an angle (theta) to the ratio of the opposite side (a) to the adjacent side (b) in a right triangle.
To solve for the angle theta, take the inverse tangent (arctan) of both sides:
theta = arctan(a/b)

This will give you the angle in radians. To convert to degrees, simply multiply by 180/pi.
So, by measuring the lengths of the short and long legs of the right triangle and using the formula above, you can accurately determine the smallest angle of the triangle.

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A store is selling a large selection of men's shirts, and every shirt has the same
price. Kiyoshi buys 6 shirts and gets a $30 discount. His friend Gregory buys 4 shirts
and does not receive a discount. Gregory spends $20 less than Kiyoshi. What is the
price of one shirt without any discount?
O $25

Answers

A store is selling a large selection of men's shirts, and every shirt has the same price. Kiyoshi buys 6 shirts and gets a $30 discount. His friend Gregory buys 4 shirts and does not receive a discount. Gregory spends $20 less than Kiyoshi. 25% is the price of one shirt without any discount.

A reduction from the list price of products or services is known as a discount. It denotes the selling of a product for less than its typical cost. In most cases, discounts are expressed as percentages. On the other hand, it could also represent a set discount from the original cost of the goods or services. The difference above the purchase price and the item's par value is the discount.

PERSON      SHIRTS    COST

Kyoshi        6       6p-30

Gregory       4       4p

DIFFERENCE            20

6p-30-4p=20

6p-4p=20%2B30

2p=50

p=25%

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What is the area of the garden?​

Answers

The area of the garden is equal to 12.5 m².

How to calculate the area of a triangle?

In Mathematics and Geometry, the area of a triangle can be calculated by using this formula:

Area = 1/2 × b × h

Where:

b represent the base area.h represent the height.

Next, we would determine the side lengths of this right triangle by using the distance between coordinates formula;

Distance AB = √[(x₂ - x₁)² + (y₂ - y₁)²]

Distance AB = √[(0 - 4)² + (-2 - 1)²]

Distance AB = √[(-4)² + (-3)²]

Distance AB = √[16 + 9]

Distance AB = 5 meters.

Distance BC = √[(3 - 0)² + (2 + 2)²]

Distance BC = √[(3)² + (4)²]

Distance BC = √[9 + 16]

Distance BC = 5 meters.

Area of garden = 1/2 × AB × BC

Area of garden = 1/2 × 5 × 5

Area of garden = 25/2

Area of garden = 12.5 m².

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