The number or expression underneath the top line of the symbol is called the radicand. The cube root symbol is a grouping symbol, meaning that all operations in the radicand are grouped as if they were in parentheses.
To write the radicand as the product of a perfect cube (first) and a factor that does not contain a perfect cube (second), follow these steps:
1. Identify the radicand in the given expression. The radicand is the number or expression inside the cube root symbol.
2. Determine the prime factors of the radicand by breaking it down into its smallest prime factors.
3. Group the prime factors into sets of three identical factors. These sets will form the perfect cube factors.
4. Multiply the sets of three factors together to form the perfect cube part of the product.
5. Multiply any remaining factors together to form the factor that does not contain a perfect cube.
6. Write the radicand as the product of the perfect cube (step 4 result) and the factor that does not contain a perfect cube (step 5 result).
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A faculty committee has decided to choose one or more students to join the committee. A total of 5 juniors and 6 seniors have volunteered to serve on this committee. How many different choices are there if the committee decides to select (a) one junior and one senior?
(b) exactly one student?
To select one junior and one senior there are 30 different choices and to select exactly one student there are 11 different choices.
(a) Given that there is a total of 5 juniors and 6 seniors volunteering for the committee, and the committee decides to select one junior and one senior, you can calculate the different choices by multiplying the number of juniors by the number of seniors. In this case, it would be 5 juniors * 6 seniors = 30 different choices.
(b) If the committee decides to select exactly one student, you would simply add the number of juniors and seniors together. In this case, it would be 5 juniors + 6 seniors = 11 different choices.
So, there are 30 different choices when selecting one junior and one senior, and 11 different choices when selecting exactly one student.
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How many moles of aluminum will be used when reacted with 1.35 moles of oxygen based on this chemical reaction? __Al + ___ O2 → 2Al2O3
I NEED IT ASAP
In this process, 1.35 moles of oxygen are combined with roughly 1.80 moles of aluminum.
The balanced chemical equation for the reaction between aluminum and oxygen is:
4 Al + 3 O₂ → 2 Al₂O₃
As a result, in order to create 2 moles of aluminum oxide (Al₂O₃), 3 moles of oxygen gas (O₂) must react with 4 moles of aluminum (Al).
We are given 1.35 moles of oxygen gas, thus we can calculate a percentage to estimate how many moles of aluminum are required using this information:
4 moles Al / 3 moles O₂ = x moles Al / 1.35 moles O
Solving for x, we get:
x = 4 moles Al * 1.35 moles O₂ / 3 moles O₂
x ≈ 1.80 moles Al
Therefore, approximately 1.80 moles of aluminum will be used when reacted with 1.35 moles of oxygen in this reaction.
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Using the partial fractions technique, the function f(x) = 68x+168/ x^2+2x-24 can be written as a sum of partial fractions
We can express f(x) as a sum of partial fractions as: f(x) = (-10 / (x + 6)) + (78 / (x - 4))
To write the function f(x) = [tex](68x + 168) / (x^2 + 2x - 24)[/tex] as a sum of partial fractions, we first need to factor the denominator:
[tex]x^2 + 2x - 24 = (x + 6)(x - 4)[/tex]
So we can write:
f(x) = (68x + 168) / ((x + 6)(x - 4))
Now we can use the method of partial fractions to express f(x) as a sum of simpler fractions:
f(x) = A / (x + 6) + B / (x - 4)
where A and B are constants that we need to find. To do this, we can multiply both sides of the equation by the common denominator (x + 6)(x - 4):
(68x + 168) = A(x - 4) + B(x + 6)
Expanding and collecting like terms, we get:
68x + 168 = (A + B) x + (6B - 4A)
Since this equation holds for all values of x, we can equate the coefficients of x and the constant terms separately:
68 = A + B
168 = 6B - 4A
Solving these two equations simultaneously, we get:
A = -10
B = 78
Therefore, we can express f(x) as a sum of partial fractions as:
f(x) = (-10 / (x + 6)) + (78 / (x - 4))
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What is 1/4 of 1 & 1/4
a. 1/4
b. 1/5
c. 5/16
d. 1/2
1/5
you take 1/4÷ 1 1/4 and you get 1/5
Based on the Normal model N( 100, 15) describing IQ scores, what percent of people's IQs would you expect to be a) over 80? b) under 90? c) between 112 and 132?
The percentage of people's IQ over 80 is 9.18%, the percentage of people's IQ under 90 is 25.14% and the percentage of people's IQ between 112 and 132 is 8.23%
Then,
a) Over 80:
The z-score for 80 is (80-100)/15 = -1.33
Using a standard normal distribution table , we can evaluate that the area under the normal curve to the right of -1.33 is approximately 0.9082.
Therefore, the percentage of people's IQs that will be over 80 is approximately
(1-0.9082) x 100%
= 9.18%.
b) Under 90:
The z-score for 90 is (90-100)/15 = -0.67
Using a standard normal distribution table, we can evaluate that the area under the normal curve to the left of -0.67 is approximately 0.2514.
Therefore, the percentage of people's IQs that will be under 90 is approximately
0.2514 x 100%
= 25.14%.
c) Between 112 and 132:
The z-score for 112 is (112-100)/15 = 0.8
The z-score for 132 is (132-100)/15 = 2.13
Using a standard normal distribution table, we can calculate that the area under the normal curve between these two z-scores is approximately 0.0823.
Therefore, the percentage of people's IQs that will be between 112 and 132 is approximately
0.0823 x 100%
= 8.23%.
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NEED ANSWER ASAP : The formula gives the maximum height y of a projectile launched straight up, given acceleration a and initial velocity v.
y=v^2/2a
Solve for v.
Responses
v=2ay√/a
v equals fraction numerator square root of 2 a y end root over denominator a end fraction
v=4a^2y^2
v equals 4 a squared y squared
v=4y^2/a^2
v equals fraction numerator 4 y squared over denominator a squared end fraction
v=2ay−−−√
The required expression is v = √2ay.
Let acceleration is given by: a
and initial velocity is given by: v
So, The maximum height(y) is
y= v² sinθ / 2a
As, θ=90 then
y = v² /2a
v² = 2ay
v = √2ay
Thus, the required expression is v = √2ay.
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Water is steadily dripping from a faucet into a bowl. You want to write an equation that represents the number of milliliters y of water in the bowl after x seconds. What is the constant of proportionality for the relationship between the number of milliliters y of water in the bowl and the time in seconds x? What is the equation?
Water from Dripping Faucet
Time in
Seconds (x)
Milliliters
in Bowl (y)
20
320
35
560
45
720
60
960
The constant of proportionality is nothing
The equation that represents the number of milliliters y of water in the bowl after x seconds is: y = 16x
The constant of proportionality for this relationship is the slope of the linear function that passes through any two points on the line. We can use the points (20, 320) and (60, 960) from the table to find the slope:
slope = (960 - 320) / (60 - 20) = 640 / 40 = 16
Therefore, the equation that represents the number of milliliters y of water in the bowl after x seconds is: y = 16x
What is the Constant of Proportionality?The constant of proportionality is the ratio that relates two given values in what is known as a proportional relationship. Other names for the constant of proportionality include the constant ratio, constant rate, unit rate, constant variation, or even the rate of change.
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Find a value of the standard normal random variable z, call it zo such that the following probabilities are satisfied. a. P(z ≤ zo) = 0.0151 b. P(-z0 ≤ z ≤ z0)=0.99 c. P(- zo ≤ z ≤ z0)=0.90 d. P(-z0 ≤ z ≤ zo) = 0.8154
e. P(-z0 ≤ z ≤ 0)= 0-2755 f. P(-2 < z < z)=0.9746 g. P(z >z0)=0.5 h. P (z ≤ zo)= 0.0043
The values of the standard normal random variable z, such that the probability of the following are satisfied: a. zo = -2.17; b. zo = 2.58; c. zo = 1.645; d. zo = 1.44.; e. zo = 0.37; f. zo = 1.96; g. zo = 0; h. zo = 0.
a. P(z ≤ zo) = 0.0151:
zo = -2.17.
b. P(-z0 ≤ z ≤ z0)=0.99
Since the standard normal distribution is symmetric, therefore, finding the z-score corresponding to probability: (1+0.99)/2 = 0.995.
zo = 2.58.
c. P(-zo ≤ z ≤ zo)=0.90:
Using the same reasoning as above, z-score for probability: (1+0.90)/2 = 0.95.
zo = 1.645.
d. P(-z0 ≤ z ≤ zo) = 0.8154:
probability of being outside and inside the range (-zo, zo) respectively:
P(z ≤ -zo) = P(z ≥ zo) = (1 - 0.8154)/2 = 0.0923
P(-zo ≤ z ≤ zo) = 1 - P(z ≤ -zo) - P(z ≥ zo) = 1 - 2(0.0923) = 0.8154
z-score for probability: (1+0.8154)/2 = 0.9077.
zo = 1.44.
e. P(-zo ≤ z ≤ 0) = 0.2755:
Using symmetry of standard normal distribution:
P(-zo ≤ z ≤ 0) = P(0 ≤ z ≤ zo) = (1 - 0.2755)/2 = 0.36225
zo = 0.37.
f. P(-2 < z < zo) = 0.9746:
zo = 1.96.
g. P(z > zo) = 0.5:
Since the standard normal distribution is symmetric:
P(z > zo) = P(z < -zo) = 0.5
zo = 0.
h. P(z ≤ zo) = 0.0043:
zo = 0.
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Help me pls. paying a lot of points
Answer:
33.3333%
Step-by-step explanation:
Answer:3/6 or 1/2
Step-by-step explanation:
select the true statement(s) about hypothesis tests. a statistical hypothesis is always stated in terms of a population parameter. in a test of a statistical hypothesis, there may be more than one alternative hypothesis. in a test of a statistical hypothesis, we attempt to find evidence in favor of the null hypothesis. if the value of the test statistic lies in the nonrejection region, then the null hypothesis is true.
It does not mean that the null hypothesis is true.
The true statement about hypothesis tests is:
- A statistical hypothesis is always stated in terms of a population parameter.
The other statements are false:
- In a test of a statistical hypothesis, there may be more than one alternative hypothesis. This is not true. There should only be one alternative hypothesis.
- In a test of a statistical hypothesis, we attempt to find evidence in favor of the null hypothesis. This is not true. In a hypothesis test, we attempt to find evidence against the null hypothesis.
- If the value of the test statistic lies in the nonrejection region, then the null hypothesis is true. This is not true. If the value of the test statistic lies in the nonrejection region, we do not have enough evidence to reject the null hypothesis. It does not mean that the null hypothesis is true.
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At UTAS Shinas, ten people had a diabetes test every day The table shows the data based on age and number of diabetes tests. You are a statistical analyst at the college, and the medical assistant has sent the above report to you because you need to find the relation between two variables based on y = a + bx. How will you proceed to submit this report?
For a statistical analysis, the report should include an introduction, methodology, results, discussion, and conclusion. It should be written in a clear and concise manner, and include any visual aids such as graphs or tables that help to illustrate the findings.
To find the relation between the two variables, age and number of diabetes tests, based on the linear equation y = a + bx, we need to perform linear regression analysis. follow the steps:
Collect the data in the table.
Organize the data into a spreadsheet, with the age and the number of diabetes tests as the two columns.
Calculate the mean of the age and the number of diabetes tests.
Calculate the covariance between age and the number of diabetes tests.
Calculate the variance of the age.
Calculate the regression coefficient (b) using the formula b = covariance / variance.
Calculate the intercept (a) using the formula a = mean(y) - b * mean(x), where x is the age and y is the number of diabetes tests.
Plot the data of the age and the number of diabetes tests.
Draw the regression line on the scatter plot using the equation y = a + bx.
Interpret the results by writing a report that explains the relationship between age and the number of diabetes tests, based on the regression analysis.
Include the information such as correlation coefficient, coefficient of determination (R-squared), and p-value.
Conclude the report with recommendations.
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Which of the following would have resulted in a violation of the conditions for inference? (a) If the entire sample was selected from one classroom (b) If the sample size was 15 instead of 25 (c) If the scatterplot of x = foot length and y = height did not show a perfect linear relationship (d) If the histogram of heights had an outlier (e) If the standard deviation of foot length was different from the standard deviation of height
A perfect linear relationship is essential for making accurate inferences in regression analysis. If the relationship between the variables is not linear, the results from the analysis may not be valid or reliable.
Option (a) would have resulted in a violation of the conditions for inference, as it would not be a representative sample of the population. Inference relies on the sample being representative of the population, and selecting the entire sample from one classroom would not be a random selection from the population.
Options (b), (c), (d), and (e) do not necessarily violate the conditions for inference. The sample size of 15 may affect the precision of the estimate, but it does not necessarily violate the conditions for inference.
A perfect linear relationship is essential for making accurate inferences in regression analysis. The scatterplot not showing a perfect linear relationship is expected in most cases, as perfect linear relationships are rare in real-world data. The histogram having an outlier may affect the distribution, but it does not necessarily violate the conditions for inference. And the standard deviation of foot length is different from the standard deviation of height is expected, as they are measuring different variables.
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A simple random sample of 100 postal employees is used to test if the average time postal employees have worked for the postal service has changed from the value of 7.5 years recorded 20 years ago. The sample mean was 7 years with a standard deviation of 2 years. Assume the distribution of the time the employees have worked for the postal service is approximately normal. The hypotheses being tested are H0: μ = 7.5, HA: μ ≠ 7.5. A one-sample t test will be used.
What are the appropriate degrees of freedom for this test?
a) 19
b) 99
c) 100
d) 7
What is the value of the test statistic for the one-sample t?
a) 2.5
b) -2.5
c) 2
d) -0.25
What is the p-value for the one-sample t?
a. 0.02 > p-value > 0.01
b. 0.10 > p-value > 0.05
c. 0.0062
d. 0.01 > p-value > 0.005
e. 0.05 > p-value > 0.01
Suppose the mean and standard deviation obtained were based on a sample of size n=25 postal workers rather than 100.
What do we know about the value of the p-value?
a) It would be larger.
b) It would be unchanged because the variability or standard deviation is the same.
c) It would be unchanged because the difference between the sample mean and the hypothesized mean is the same.
d) It would be smaller.
What would you conclude about the population?
a) The true average years is greater than 7.5
b) The true average years is not equal to 7.5
c) The true average years is equal to 7.5
d) Not enough information
We reject the null hypothesis and conclude that the true average years are not equal to 7.5.
The appropriate degrees of freedom for this test is: b) 99
The degrees of freedom are calculated as n - 1, where n is the sample size (100 in this case).
So, [tex]n-1=100-1=99[/tex].
The value of the test statistic for the one-sample t is: b) -2.5
The test statistic is calculated using the formula: [tex]\frac{(sample mean - hypothesized mean)}{\frac{standard deviation}{\sqrt{sample size}}}[/tex], which is =[tex]\frac{(7 - 7.5)}{\frac{2}{\sqrt{100}}}[/tex] -2.5.
The p-value for the one-sample t is: e) 0.05 > p-value > 0.01
With a test statistic of -2.5 and 99 degrees of freedom, the p-value falls between 0.01 and 0.05.
If the mean and standard deviation were based on a sample of size n=25 postal workers rather than 100, the value of the p-value would be:
a) It would be larger.
A smaller sample size typically results in a larger p-value, making it more difficult to reject the null hypothesis.
Based on the given information, we can conclude about the population:
b) The true average years is not equal to 7.5
Since the p-value is between 0.01 and 0.05, it's significant at the 0.05 level, leading us to reject the null hypothesis and conclude that the true average years is not equal to 7.5.
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Addisonisasalesperson.Shesoldacoatfor$75andearned10%commission.HowmuchcommissiondidAddisonearn?
Write an equation for the relationship
Shown in the table. Then find the
Unknown value (?) in the table.
X- 4, 10, 12, 18, 23
Y- -1, 0.5, 1, ?, 3.75
The equation for the relationship would be y = 0.25x - 2 and the unknown value would be 2. 5.
How to find the equation ?To find the equation, you first need to find the slope of the line by picking two points and applying the slope formula. The two points are (4, -1) and (12, 1).
The slope is:
= (y2 - y1) / (x2 - x1)
= ( 1 - ( - 1 ) ) / ( 12 - 4)
= 2 / 8
= 0. 25
We can then find the full equation :
y - ( - 1 ) = 0.25 (x - 4)
y = 0.25x - 2
The unknown y value when x is 18 is:
y = 0.25 ( 18 ) - 2
y = 2. 5
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what is 104 subtracted by 18
Answer:
104-18=86 and also 18-104=-86
Step-by-step explanation:
The diameter of a circle is 7 cm. Find its area to the nearest whole number.
Answer:
Step-by-step explanation:
Answer: A=38.48
Step-by-step explanation:
A=πr^2
7/2=3.5
3.5x3.5=12.25
12.25π
38.48
Hope this helps! :)
Find f(-3) for the piece-wise function.
The value of function f(- 3) for the piece-wise function is,
⇒ f (- 3) = - 1
We have to given that;
The piece-wise function is,
f (x) = (x + 2) ; if x < 2
= (x + 1) ; if x ≥ 2
Hence, At x = - 3;
Function is,
⇒ f (x) = x + 2
Hence, Substitute x = - 3;
⇒ f (- 3) = - 3 + 2
⇒ f (-3) = - 1
Thus, The value of function f(- 3) for the piece-wise function is,
⇒ f (- 3) = - 1
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Pls helps me out with this! ASAP
The tables are completed as follows:
Table 1: f(x) = 30.Table 2: f(x) = 1.301.How to complete the table?For Table 1, we have an exponential function defined as follows:
f(x) = b^x.
We have that when x = 0.699, f(x) = 5, hence the base b is obtained as follows:
b^0.699 = 5
b = 5^(1/0.699)
b = 10.
Hence, when x = 1.477, the value of f(x) is given as follows:
f(x) = 10^1.477
f(x) = 30.
Table 2 is the inverse of table 1. For Table I, we have that when x = 1.301, f(x) = 20, hence for table 2, we have that f(x) = 1.301 when x = 20.
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In right triangle XYZ, angle y and angle z are complementary angles. If sin (y) = 0.423, cos (y) = 0.906, and tan (y) = 0.466, then cos (x)=
Bruce Lovegren was born on September 27, 1950. On April 14, 1977, he purchased a $15,000 10-year term life insurance policy. What was the annual premium he paid?
Bruce Lovegren paid a monthly annual premium of $125 for his $15,000 10-year term life insurance policy.
The monthly premium can be calculated by dividing the total cost of the policy by the number of months in the policy term:
monthly premium = total cost of policy / number of months in policy term
The total cost of the policy can be calculated by multiplying the annual premium by the number of years in the policy term:
total cost of policy = annual premium * number of years in policy term
The number of months in a year is 12.
Bruce Lovegren purchased the policy on April 14, 1977, so the policy was in effect for 10 years and 8 months, or 128 months.
The annual premium as follows:
total cost of policy = $15,000
number of years in policy term = 10
annual premium = total cost of policy / number of years in policy term
annual premium = $15,000 / 10
annual premium = $1,500
monthly premium = annual premium / 12
monthly premium = $1,500 / 12
monthly premium = $125
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5) A warehouse outside of a factory currently has an inventory of 1245 boxes. After an 8-
hour work day, the warehouse has 2000 boxes. Assume the warehouse was being filled at a
constant (linear) rate.
a) How many boxes per hour is the factory able to provide to the warehouse?
b) What would be the inventory at the end of a 40-hour work week?
c) How long will it take to fill the warehouse to its 50,000 box capacity?
6) In the year 2007, a FOREVER stamp cost cost $0.41. In 2023, the cost of a FOREVER
stamp was $0.63. Assume that the cost of stamps increased at a constant (linear) rate.
a) If price increases continue at the current rate, how much will a FOREVER stamp
cost in 2035?
b) In what year would you expect a FOREVER stamp to cost one dollar?
7) In January of 2021, there were 980,000 games available on the Apple App Store. By July
of 2021, there were 984,200 games available. If we assume that the number of available
games is steadily increasing at a constant (linear) rate,
a) How many games does this pattern predict will be available in January 2022?
b) At this rate, when will there be 1,000,000 games available for purchase in the Apple
App Store?
Thee factory is able to provide 94.38 boxes per hour to the warehouse.
How to calculate the valueRate = (2000 - 1245) / 8 = 94.38 boxes per hour
Therefore, the factory is able to provide 94.38 boxes per hour to the warehouse.
Boxes added in 40 hours = rate * time = 94.38 * 40 = 3,775.2
Therefore, the inventory at the end of a 40-hour work week would be:
1245 + 3775.2 = 5020.2 boxes
rate = (50000 - 1245) / time
Simplifying this equation, we get:
time = (50000 - 1245) / rate = 511.64 hours (rounded to two decimal places).
Therefore, it will take approximately 511.64 hours to fill the warehouse to its 50,000 box capacity,
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a box has a volume of 140 cm Square if its breadth is 5 cm and it's length is 7 cm find it's height
Answer:
To find the height of the box, we need to use the formula for volume of a box: Volume = length x breadth x height
Given the values for length and breadth, we can substitute them into the formula and solve for height: 140 = 7 x 5 x height
Simplifying the equation, we get: 140 = 35 x height
Dividing both sides by 35, we get: height = 4
Therefore, the height of the box is 4 cm
"price by mathematical induction
Prove that n! > 2^n for all n ∈ Z≥4"
By the principle of mathematical induction, we can conclude that n! > 2ⁿ for all n ∈ Z≥4.
What is mathematical induction?The art of demonstrating a claim, theorem, or formula that is regarded as true for each and every natural number n is known as proof.
We can prove by mathematical induction that n! > 2ⁿ for all n ∈ Z≥4.
First, we will prove the base case n = 4:
4! = 4 x 3 x 2 x 1 = 24
2⁴ = 16
Since 24 > 16, the base case is true.
Next, we assume that the inequality is true for some arbitrary k ≥ 4:
k! > [tex]2^k[/tex]
To complete the induction step, we must prove that the inequality is also true for k + 1:
(k+1)! = (k+1) x k!
(k+1)! > (k+1) x [tex]2^k[/tex] (by the induction hypothesis)
(k+1)! > 2 x [tex]2^k[/tex]
(k+1)! > [tex]2^{(k+1)[/tex]
Since the inequality is true for k+1, this completes the induction step.
Therefore, by the principle of mathematical induction, we can conclude that n! > 2ⁿ for all n ∈ Z≥4.
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Which exponents are equivalent to 2 exponent 6? Choose ALL that apply.
Answer:
the entire right column
Step-by-step explanation:
your solutions should simply to 64
Answer:2*2*2*2*2*2 and 4*16 and 8*8
Step-by-step explanation:
2*2*2*2*2*2=64
4*16=64
8*8=64
6*6*6*6*6*6=46656
2*6=12
12*12=144
Aaden wants to get a subscription to a library. There are two subscription options one of which charges a fixed 96 dollar annual fee and the other which charges 3 dollars per book he borrows.
what does point Q represent in this context?
a. A number of books and their cost where the subscription with the annual fee costs less
b. A number of books and their cost where the subscription the charges per book costs less
c. A number of books and their cost where both subscriptions cost the same
d. A number of books and their cost that is not possible with either subscription
Point R in this context represents the number of books borrowed and their cost where both subscription options cost the same.
The correct option is A.
Let's analyze the two subscription options:
Subscription with a fixed annual fee: This option charges a fixed $96 annual fee, regardless of the number of books borrowed.
The cost function for this subscription is a horizontal line at y = $96.
Subscription that charges per book borrowed: This option charges $3 per book borrowed. The cost function for this subscription is a linear function with a slope of $3.
When we plot the cost functions on a graph with the number of books borrowed on the x-axis and the cost on the y-axis, we will see that the two lines intersect at a point. This point of intersection is point R.
At point R, the cost of both subscriptions is the same. Therefore, the correct answer is c.
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The complete question:
Aaden wants to get a subscription to a library. There are two subscription options one of which charges a fixed 96-dollar annual fee and the other which charges 3 dollars per book he borrows.
What does point R represent in this context?
a. A number of books and their cost where the subscription with the annual fee costs less
b. A number of books and their cost where the subscription the charges per book costs less
c. A number of books and their cost where both subscriptions cost the same
d. A number of books and their cost that is not possible with either subscription
The complete question is given in the attached image.
A magician holds a standard deck of cards and draws one card. The probability of drawing the ace of diamonds is 1/52. What method of assigning probabilities was used?
a. classical method
b. objective method
c. subjective method
d. experimental method
The probability of drawing the ace of diamonds is determined by the number of possible outcomes (52 cards in a standard deck) and the number of favorable outcomes (1 ace of diamonds). Your answer: a. classical method
The method of assigning probabilities used in this scenario is the classical method, where the probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes. In this case, there is only one favorable outcome (drawing the ace of diamonds) out of 52 possible outcomes (drawing any card from a standard deck of 52 cards).
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CRITICAL THINKING
Solve the problem. Show your work.
Find the total area of the flower and vegetable garden.
Use the formula for the area of a rectangle.
6 ft
4 ft
flowers
vegetables
8 ft
Garden
Answer:
Step-by-step explanation:
Formula of rectangle: base x height (b*h)
base: 8ft
height: 6+4= 10
8 x 10 = 80
Area of rectangle: 80ft
Solve the problem. Show your work.
Reina heard on the 6:00 P.M. news that the temperature had
dropped 22° since 4:00 P.M. At 4:00 P.M., the temperature was 12º.
What is the temperature at 6:00 P.M.?
What is the product of
8.2
×
1
0
2
8.2×10
2
and
3.4
×
1
0
5
3.4×10
5
expressed in scientific notation?
The product of the numbers is 2.788 x 10^8.
What is a scientific notation?Scientific notation is a method of expressing very large numbers so that they can be easily understood. The process involves expressing the number in terms of the power of ten. For example; 1230000000000 = 1.23 x 10^12.
In the given question, the product of 8.2 x 10^2 and 3.4 x 10^5 is required.
Thus;
8.2 x 10^2 * 3.4 x 10^5 = 8.2 * 3.4 x 10^5 * x 10^2
= 8.2 * 3.4 x 10^(2+5)
= 27.88 x 10^7
= 2.788 x 10^8
Therefore, the product of the numbers expressed in scientific notation is 2.788 x 10^8.
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