There are 816 triangles that can be formed using diagonals from a common vertex of a 19-gon.
How to calculate the number of triangles that can be formedThe number of available vertices that are not adjacent to the vertex in question is 18, and we have the freedom to pick three of them by selecting from a pool of 18C3 options. Nevertheless, as we disregard the order in which these vertices are selected, their sequence must be divided by 3!.
As such, the total count for possible triangles formed using diagonals originating at the same vertex in a 19-gon is:
The triangles that would be formed is given as 816 triangles
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The results from a study using a One-Way ANOVA indicate that there are significant differences between conditions, F(4,55) = 6.17, p<.05, eta² = .19 In Blank 1: How many treatment conditions were compared in this study? In Blank 2: How many individuals participated in the entire study Blank # 1 A Blank #2
Blank 1: In this study, 5 treatment conditions were compared
Blank 2: There were 60 individuals who participated in the entire study
The Independent Samples t Test is extended by the One-way ANOVA (In independent samples t test used to compare the means between two independent groups, whereas in one-way ANOVA, means are compared among three or more independent groups).
Whereas a two-way ANOVA employs two independent variables, a one-way ANOVA just uses one.
Example of One-Way ANOVA You want to examine how three different fertilizer combinations affect crop yield as an agricultural researcher.
ANOVA comes in two primary flavours: one-way (also known as unidirectional) and two-way. ANOVA can also take several forms.
The mean of a quantitative variable is estimated using a two-way ANOVA in relation to the values of two categorical variables
Blank 1: In this study, 5 treatment conditions were compared (the number of conditions is one more than the first number in the F-statistic, which is 4).
Blank 2: There were 60 individuals who participated in the entire study (you can calculate this by adding the two numbers in the F-statistic and then adding 1,
so 4 + 55 + 1 = 60).
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Which pairs of non-overlapping angles share a ray to make a right angle? Select all that apply.
A ray is a half-infinite line. The pairs of non-overlapping angles that share a ray to make a right angle are ∠FGE and ∠FGH.
Since, We know that;
A half-infinite line (also known as a half-line) with one of the two points and is commonly used to represent a ray. It is assumed to be infinite.
A straight line has an angle of measurement of 180°. And a 90° angle is made when two lines are perpendicular to each other.
As we can see the line EGH is a straight line, and FG is another line that is perpendicular to line EH,
Therefore, it will form two angles measuring 90°. These angles will be ∠FGE and ∠FGH.
Hence, the pairs of non-overlapping angles that share a ray to make a right angle are ∠FGE and ∠FGH.
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Drop shipping involves: transferring orders to another company having an integrated e-procurement and e-commerce platform local warehousing good relationships with transportation companies
The retailer only purchases the product when a customer places an order, which reduces the financial risks associated with holding inventory.
Drop shipping is a supply chain management method in which a retailer does not keep goods in stock but instead transfers orders and shipment details to a manufacturer, wholesaler, or another retailer, who then ships the goods directly to the customer.
In drop shipping, the retailer acts as an intermediary between the customer and the supplier, without actually holding any inventory. The retailer displays the products on their online store, and when an order is placed, the retailer forwards the order details and shipment information to the supplier. The supplier then ships the product directly to the customer.
To effectively implement drop shipping, the retailer needs to have a good relationship with the supplier who is responsible for shipping the product. The supplier must have an integrated e-procurement and e-commerce platform to receive orders and track inventory. The supplier must also have local warehousing or distribution centers close to the customer's location to ensure quick delivery and minimize shipping costs.
Having good relationships with transportation companies is also critical for the success of drop shipping. Retailers must have reliable shipping partners that can handle the transportation of goods from the supplier to the customer.
Overall, drop shipping allows retailers to offer a wider range of products to customers without the need for inventory management or warehousing. The retailer only purchases the product when a customer places an order, which reduces the financial risks associated with holding inventory.
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Suppose a firm's total cost is given by TC = 100 + aQ +bQ? . Let a = 3 and b = 1. What is the average total cost when Q=1000? Round to the nearest integer Your Answer: Answer
The average total cost when Q=1000 is approximately 1003.
To find the average total cost when Q=1000 and given the total cost function TC = 100 + aQ + bQ² with a = 3 and b = 1, follow these steps:
1. Plug in the values of a, b, and Q into the total cost function:
TC = 100 + 3(1000) + 1(1000)²
2. Calculate the total cost:
TC = 100 + 3000 + 1000000 = 1003100
3. Calculate the average total cost by dividing the total cost by the quantity (Q):
Average Total Cost (ATC) = TC / Q = 1003100 / 1000 = 1003.1
4. Round the average total cost to the nearest integer:
ATC ≈ 1003
So, the average total cost when Q=1000 is approximately 1003.
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How do you solve this?
Answer:
23 ft^3
Step-by-step explanation:
The volume would be the little box plus the big rectangle. The volume of the little box is 2*2*2 which equals 8. The volume of the second box is 1*3*5 which equals 15. The volume of the whole shape is 8+15=23ft^3.
: how many 7-digit telephone numbers are possible if the first digit cannot be 8 and: a) only odd digits are used
Answer:
If the first digit cannot be 8, there are 9 choices for the first digit (any digit from 1 to 9).
(a) If only odd digits are used, there are 5 choices for each of the remaining 6 digits (1, 3, 5, 7, or 9). Therefore, the total number of possible 7-digit telephone numbers with only odd digits is:
9 * 5 * 5 * 5 * 5 * 5 * 5 = 59,531,250
So there are 59,531,250 possible 7-digit telephone numbers if the first digit cannot be 8 and only odd digits are used.
Step-by-step explanation:
There are 50,000 possible 7-digit telephone number using only odd digits and with the first digit not being 8.
To determine the number of possible 7-digit telephone numbers using only odd digits and with the first digit not being 8, let's consider the following:
Odd digits: 1, 3, 5, 7, and 9
Number of odd digits: 5
a) Only odd digits are used:
For the first digit, there are 4 choices (1, 3, 5, and 7) since it cannot be 8. For the remaining 6 digits, we have 5 choices each (1, 3, 5, 7, and 9) since they can be any odd digit.
Step 1: First digit - 4 choices
Step 2: Second digit - 5 choices
Step 3: Third digit - 5 choices
Step 4: Fourth digit - 5 choices
Step 5: Fifth digit - 5 choices
Step 6: Sixth digit - 5 choices
Step 7: Seventh digit - 5 choices
To find the total number of possible 7-digit telephone numbers, multiply the number of choices for each digit together:
Total possibilities = 4 × 5 × 5 × 5 × 5 × 5 × 5 = 4 × 5^6 = 50,000
So, there are 50,000 possible 7-digit telephone numbers using only odd digits and with the first digit not being 8.
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What is the product of d−9 and 2d2+11d−4 ?
The product of the terms [tex](d - 9)[/tex] and [tex](2d^{2} + 11d -4)[/tex] will be [tex](2d^{3} - 7d^{2} - 103d + 36)[/tex].
We have to find the product of two terms.
First term = (d - 9)
Second term = [tex](2d^{2} + 11d -4)[/tex]
To find the product of these two terms, we will be using the distributive property. According to the distributive property, when we multiply the sum of two or more addends by a number, it will give the same result as when we multiply each addend individually by the number and then add the products together.
We have to find : [tex](d - 9) (2d^2 + 11d -4)[/tex]
Using the distributive property,
[tex]d * 2d^{2} + d * 11 + d * (-4) - 9 * 2d^2 - 9 * 11d - 9 * (-4)[/tex]
After further multiplication, we get
[tex]2d^{3} + 11d^2 - 4d - 18d^{2} - 99d + 36[/tex]
Now, combine all the like terms.
[tex]2d^{3} + 11d^{2} - 18d^{2} - 4d - 99d + 36[/tex]
[tex]2d^{3} - 7d^{2} - 103d + 36[/tex]
Therefore, the product of d-9 and 2d^2 + 11d -4 is [tex]2d^{3} - 7d^{2} - 103d + 36[/tex]
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you have determined that you need a showing rate of 79.62 kg/ha
for a wheat crop. if you have 12.560 kg of wheat seed,what
percentage of 250 ha paddock could you sow?
To calculate the percentage of the 250 ha paddock that can be sowed with 12.560 kg of wheat seed, we first need to determine how much seed is needed per hectare and this will give the answer 0.063%.
Given that the showing rate is 79.62 kg/ha, we can divide the total seed amount by the showing rate to get the number of hectares that can be sown with the given amount of seed:
12.560 kg / 79.62 kg/ha = 0.1576 ha
This means that 0.1576 hectares of land can be sown with 12.560 kg of wheat seed.
To calculate the percentage of the 250 ha paddock that can be sown, we can divide the sown land area by the total paddock area and then multiply by 100:
0.1576 ha / 250 ha x 100% = 0.063%
Therefore, you can sow approximately 0.063% of the 250 ha paddock with 12.560 kg of wheat seed, assuming a showing rate of 79.62 kg/ha.
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Use the diagram to answer the question.
The measure of ∠1
∠
1
is 62°
62
°
. What is the approximate value of n
n
?
Applying the definition of a linear pair, the value of n is calculated as: n = 41.33.
What is a Linear pair?A linear pair consist of two angles that are on a straight line and also have a sum of 180 degrees.
The missing diagram is in the attachment provided below which shows the angles in question.
Angle 1 and (3n - 6) are two angles on a straight line, therefore, they are a linear pair. This also implies that they will have a sum of 180 degrees.
Therefore, we have:
62 + 3n - 6 = 180
Solve for the value of n:
56 + 3n = 180
3n = 180 - 56
3n = 124
n = 124/3
n = 41.33
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Jevonte surveyed 400 of the students in his school about their favorite color. 95% said their favorite color was red. How many students' favorite color was red?
As per the combination method, out of the 400 students surveyed, 380 students chose red as their favorite color.
To solve this problem, we can set up an equation. An equation is a statement that shows the equality between two expressions. In this case, we can write:
(Number of students who chose red) / (Total number of students) = 95/100
We can simplify 95/100 to 0.95. Multiplying both sides of the equation by 400 (the total number of students), we get:
Number of students who chose red = 0.95 * 400
Simplifying the right-hand side of the equation, we get:
Number of students who chose red = 380
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2. Which kind of function best models the set of data points (-3, 18), (-2, 6), (-1, 2), (0, 11), and (1,27)? Olinear O quadratic O exponential Onone of the above?
Exponential kind of function best models the set of data points (-3, 18), (-2, 6), (-1, 2), (0, 11), and (1,27).
To figure out which sort of capability best models the given arrangement of pieces of information, we can plot them on a chart and outwardly review the state of the bend that interfaces them.
After plotting the given pieces of information, we can see that the bend that best fits them is certainly not a straight line (direct) or a parabola (quadratic), as it seems to bend all the more steeply. The bend that best fits these focuses is likewise not a steady capability (nothing unless there are other options), as the upsides of y change concerning x.
Consequently, the capability that best models the given arrangement of information focuses is a dramatic capability, which has a bend that increments or diminishes at a speeding up rate. An overall condition for a dramatic capability is:
y =[tex]ab^x[/tex]
where an and b are constants. We can utilize the given focuses to track down the upsides of an and b, and in this manner get the particular condition that models the data of interest.
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Question 1: Evaluate 5,3" x2 dx using trapezoidal rule with n = 10
To evaluate the integral of 5.3x^2 dx using trapezoidal rule with n = 10, we first need to break the interval [0, 5.3] into 10 subintervals of equal width. The width of each subinterval, h, is given by:
h = (b - a) / n = (5.3 - 0) / 10 = 0.53
where a = 0 is the lower limit of integration and b = 5.3 is the upper limit of integration.
Next, we need to calculate the function values at the endpoints of each subinterval. Let xi be the left endpoint of the ith subinterval, then:
x1 = 0
x2 = 0.53
x3 = 1.06
x4 = 1.59
x5 = 2.12
x6 = 2.65
x7 = 3.18
x8 = 3.71
x9 = 4.24
x10 = 4.77
Using these values, we can calculate the function values at each endpoint:
f(x1) = 5.3(0)^2 = 0
f(x2) = 5.3(0.53)^2 = 0.769547
f(x3) = 5.3(1.06)^2 = 6.119948
f(x4) = 5.3(1.59)^2 = 15.013238
f(x5) = 5.3(2.12)^2 = 28.451232
f(x6) = 5.3(2.65)^2 = 46.433928
f(x7) = 5.3(3.18)^2 = 68.961326
f(x8) = 5.3(3.71)^2 = 96.033426
f(x9) = 5.3(4.24)^2 = 127.650228
f(x10) = 5.3(4.77)^2 = 163.811732
Now, we can apply the trapezoidal rule formula to approximate the integral:
∫[0,5.3] 5.3x^2 dx ≈ h/2 * [f(x1) + 2f(x2) + 2f(x3) + ... + 2f(x9) + f(x10)]
Substituting the values we calculated above, we get:
∫[0,5.3] 5.3x^2 dx ≈ 0.53/2 * [0 + 2(0.769547) + 2(6.119948) + 2(15.013238) + 2(28.451232) + 2(46.433928) + 2(68.961326) + 2(96.033426) + 2(127.650228) + 163.811732]
∫[0,5.3] 5.3x^2 dx ≈ 614.660107
Therefore, the approximate value of the integral of 5.3x^2 dx using trapezoidal rule with n = 10 is 614.660107.
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Which table shows a constant of proportionality of 2 for the ratio of string instruments to percussion instruments?
Percussion
String
2
4
6
6
9
Percussion
String
2
4
6
10
15
String Percussion
2T
4
B
2
3
String
Percussion
2
4
8
6
12
In this table, for every increase of 2 in the number of string instruments, there is a corresponding increase of 4 in the number of percussion instruments. Therefore, the ratio of string instruments to percussion instruments is always 2:1, indicating a constant of proportionality of 2.
However, rather than being started by plucking or sliding a bow across the strings, those vibrations on a piano are started by hammers striking the strings. Consequently, the piano is a type of percussion instrument. Because of this, the piano is now typically regarded as both a stringed and percussive instrument.
The table that shows a constant of proportionality of 2 for the ratio of string instruments to percussion instruments is:
String Percussion
2 4
4 8
6 12
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Correct Question:
Which table shows a constant of proportionality of 2 for the ratio of string instruments to percussion instruments?
How much is this? Pls help me I’ll make u brainlesss!
The actual sum of the quarter dollars is determined as $ 1.25.
How much is the quarter dollars?The actual sum of the quarter dollars is calculated by summing up all the individual coins.
For the diagram given, we have a total of;
1 quarter dollar + 1 quarter dollar + 1 quarter dollar + 1 quarter dollar + 1 quarter dollar = 5 quarter dollars
A quarter dollar or 1 quarter dollar = 25 cent = $0.25
The total sum of the quarter dollars is calculated as;
= $0.25 + $0.25 + $0.25 + $0.25 + $0.25
= $ 1.25
Thus, the total sum of the quarter dollars has been obtained in dollar equivalent.
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Write an expression that represents the area of the following figures.
16w length
5z height
Answer:
Step-by-step explanation:
A random survey of 460 students was conducted from a population of 2,800 students to estimate the proportion who had part time jobs. The sample showed that 207 had part-time jobs Calculate the 90 percent confidence interval for the true proportion of students who had part-time jobs (Round your answers to 3 decimal places) The 90% confidence interval is from ____ to ____
The 90% confidence interval for the true proportion of students who had part-time jobs is from 0.374 to 0.526.
We have,
1. First, calculate the sample proportion (p) by dividing the number of students with part-time jobs (207) by the total number of students surveyed (460): p = 207/460 ≈ 0.450
2. Calculate the standard error (SE) using the formula SE = √(p (1 - p)/n), where n is the sample size:
SE ≈ √(0.450(1 - 0.450)/460) ≈ 0.046
3. Find the critical value (z) for a 90% confidence interval, which is 1.645.
4. Calculate the margin of error (ME) using the formula ME = z x SE:
ME ≈ 1.645 x 0.046 ≈ 0.076
5. Find the lower and upper limits of the confidence interval by adding and subtracting the margin of error from the sample proportion:
Lower limit ≈ 0.450 - 0.076 ≈ 0.374,
Upper limit ≈ 0.450 + 0.076 ≈ 0.526
Thus,
The 90% confidence interval for the true proportion of students who had part-time jobs is from 0.374 to 0.526.
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if you give me new answer i will give you like
Find the probabilities of getting the values + 1 and - 1 For each of the space directors x, y, z and each of the vectors luz, ld, liz, 107, 117, 18)
Probabilities are calculated by dividing the number of favorable outcomes by the total number of possible outcomes. In this case, we need to know what the experiment or event is, and what the probability distribution of the outcomes looks like. Space directors refer to the three coordinate axes x, y, and z, which are used to describe three-dimensional space. Vectors are quantities that have both magnitude and direction and can be represented by arrows or line segments in space.
To find the probabilities of getting the values +1 and -1 for each of the space directors (x, y, z) and each of the vectors (luz, ld, liz, 107, 117, 18), follow these steps:
1. Determine the total number of possible outcomes for each vector. For example, if luz has 3 possible outcomes (+1, 0, -1), the total number of outcomes is 3.
2. Count the number of occurrences of +1 and -1 in each vector. For example, if luz has 1 occurrence of +1 and 1 occurrence of -1, then there are 2 occurrences of interest.
3. Calculate the probabilities by dividing the number of occurrences of interest by the total number of outcomes. For example, for luz, the probability of getting +1 or -1 is 2 occurrences of interest / 3 total outcomes = 2/3 or approximately 0.67.
Repeat these steps for each of the space directors (x, y, z) and vectors (ld, liz, 107, 117, 18) to find the probabilities of getting the values +1 and -1.
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The halsey family recently bought school clothes for their nine children if they spent an average of $167 per child, how much did they spend to the nearest ten dollars
Answer:
$1,500
Step-by-step explanation:
167 x 9 = 1,503 rounded is 1,500 dollars
Hope this helps Good Luck
helpppp me please thank you.. with explanation and answer
Answer: 204cm²
Step-by-step explanation:
I assume you are trying to work out the area of the shaded section as you have not provided a question?
1. To get the area of the whole rectangle we do length x width.
12 x 20 = 240.
2. To get the area of the triangle we do base x height, ÷ 2.
9 x 8 = 72
72 ÷ 2 = 36
3. Then to get the area of the shaded section we do the area of the rectangle - the area of the triangle
240 - 36 = 204
What is the quotient of the rational expressions shown below? Make sure
your answer is in reduced form.
x²-4-4x+4
Answer:
The quotient of the rational expressions shown below is:
(x²-4-4x+4) / 1
Simplifying the numerator:
(x²-4-4x+4) = (x²-4x) + (4-4) = x(x-4)
Therefore, the quotient is:
x(x-4) / 1 = x(x-4)
Step-by-step explanation:
Andre has an IRA, which compounds quarterly and pays 8% interest. Find the future value of his IRA if he
deposits $1,500 into his IRA at the beginning of each quarter for 5 years.
$36, 446.06
$38,674.98
$37, 174.98
$16,424.58
Answer:
(c) $37,174.98
Step-by-step explanation:
You want the future value of a quarterly payment of $1500 for 5 years into an account earning 8%, when payments are made at the beginning of the month.
Future valueYou can use a suitable calculator (or spreadsheet) to find the future value of the series of payments. It will tell you the value is $37,174.98.
Alternatively, you can use the formula for the sum of a geometric sequence, with consideration given to the fact that the last payment earns a full quarter's interest.
FV = P(1 +r/n)((1 +r/n)^(nt) -1)/(r/n)
FV = 1500(1 +.08/4)((1.02^(4·5) -1)/(.02) ≈ 37174.976
The future value is $37,174.98.
__
Additional comment
The functions provided by a calculator or spreadsheet allow for payments to be made that the beginning or the end of the period. You need to make sure to select "beginning". That is the default for the calculator shown in the attachment.
An ice cream shop sells plush replica ice cream cones with the dimensions shown. The ice cream cones are filled with a polyester fiber stuffing. Each bag of the fiber stuffing can be used to fill 720 cubic inches of volume. If the manager of the store orders 125 of the replica cones, how many bags of fiber stuffing will be needed to fill the cones? 4 in.10 In. Multiple choice question. A)32 bags B)40 bags C)45 bags D)53 bags
15bags of fiber stuffing will be needed to fill the cones
How to find how many bags of fiber stuffing will be needed to fill the conesThe volume of one replica ice cream cone is calculated as:
Volume = (1/3) × π × (radius)^2 × height
Radius = 4/2 = 2 inches
Height = 10 inches
Therefore, Volume = (1/3) × π × 2^2 × 10 = 83.78 cubic inches (rounded to two decimal places)
To fill 125 replica cones, the total volume of stuffing required will be:
Total Volume = 125 × 83.78 = 10,472.5 cubic inches
Since each bag of stuffing can fill 720 cubic inches, the number of bags required will be:
Number of bags = 10,472.5 / 720 = 14.55 (rounded up to the nearest whole number)
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Make dot plots to compare the heights of the tennis and badminton teams. Tennis team’s height (in inches): 66, 67, 69, 70, 71, 73, 73, 74, 75, 75, 76, Badminton team’s heights (in inches): 62, 62, 65, 66, 68, 71, 73.
The dot plots are plotted and the heights are compared
Given data ,
The heights of the tennis and badminton teams are given
Tennis team’s height (in inches): 66, 67, 69, 70, 71, 73, 73, 74, 75, 75, 76
Range: 10
Mean: 71.73
Median: 73.00
Mode: [73,75]
Badminton team’s heights (in inches): 62, 62, 65, 66, 68, 71, 73
Range: 11
Mean: 66.71
Median: 66.00
Mode: [62]
Now , each data point in the dataset is represented by a dot placed above the corresponding value on the axis. If there are multiple data points with the same value, the dots are stacked vertically above that value.
So , the frequency of the plots are given
Hence , the dot plots are plotted and the graph is given
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Which graph represents the solution set of the inequality x + 2 greater-than-or-equal-to 6 A number line goes from negative 9 to positive 9. A solid circle appears on positive 3. The number line is shaded from positive 3 through negative 9. A number line goes from negative 9 to positive 9. An open circle appears at positive 3. The number line is shaded from positive 3 through positive 9. A number line goes from negative 9 to positive 9. A closed circle appears at positive 4. The number line is shaded from positive 4 through positive 9. A number line goes from negative 9 to positive 9. An open circle appears at positive 4. The number line is shaded from positive 4 through negative 9.
The graph of the inequality is x + 2 ≥ 6 is plotted
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
x + 2 ≥ 6
Subtracting 2 on both sides , we get
x ≥ 4
So , the inequality is x ≥ 4 and the graph is plotted
Hence , the inequality is x ≥ 4
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Recently, More Money 4U offered an annuity that pays 4,8% compounded monthly. If $2,449 is deposited into this annuity every month, how much is in the account after 12 years? How much of this is interest?
Type the amount in the account: $ (Round to the nearest dollar.)
Type the amount of interest earned: $ (Round to the nearest dollar.)
The amount in the account after 12 years is approximately $466,197.. The amount of interest earned over 12 years is approximately $139,725.
We can use the formula for the future value of an annuity to calculate the amount in the account after 12 years:
FV = PMT * ((1 + r/12)^n - 1) / (r/12)
where PMT is the monthly deposit, r is the annual interest rate (as a decimal), n is the total number of payments, and FV is the future value of the annuity.
In this case, we have:
PMT = $2,449
r = 0.048
n = 12 * 12 = 144
Plugging these values into the formula, we get:
FV = $2,449 * ((1 + 0.048/12)^144 - 1) / (0.048/12)
FV ≈ $466,197
Therefore, the amount in the account after 12 years is approximately $466,197.
To calculate the amount of interest earned, we can subtract the total amount of deposits over 12 years from the total amount in the account:
Interest = FV - (PMT * n)
Interest = $466,197 - ($2,449 * 144)
Interest ≈ $139,725
Therefore, the amount of interest earned over 12 years is approximately $139,725.
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determine the null and alternative hypotheses. the null hypothesis is always that the mean difference is 0. the alternative hypothesis is either that. true or false
In hypothesis testing, the null hypothesis (H0) is a statement that there is no significant difference between two groups, or that a certain parameter is equal to a specified value. In this case, the null hypothesis is that the mean difference is 0, meaning there is no significant difference between the two groups being compared.
The alternative hypothesis (Ha), on the other hand, is a statement that contradicts the null hypothesis. It can be one-tailed (directional), indicating that the mean difference is greater than or less than 0, or two-tailed (non-directional), indicating that the mean difference is not equal to 0. So, to determine the null and alternative hypotheses in this case, we know that the null hypothesis is that the mean difference is 0. The alternative hypothesis can be either one of the following:
- Ha: The mean difference is not equal to 0 (two-tailed)
- Ha: The mean difference is greater than 0 (one-tailed)
- Ha: The mean difference is less than 0 (one-tailed)
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Quadrilateral EFGH is a square. What is the value of x?
Answer:
x=4
Step-by-step explanation:
as it's an equilateral each side will equal the same so the 12x will be the same as 10x+8
12x=10x+8
2x=8
x=4
if u substitute x into each equation
12×4=48
10×4+8=48
they equal the same
so x=4
The baker made a batch of chocolate chip, oatmeal raisin, and sugar cookies. If P(chocolate chip) = 0.75, interpret the likelihood of randomly selecting a chocolate chip cookie from the batch.
Equally likely and unlikely
Likely
Unlikely
This value is not possible to represent probability of a chance event.
Answer:
likely
Step-by-step explanation:
Probability is a measure of the likelihood of an event occurring. In this case, the event is selecting a chocolate chip cookie from the batch of chocolate chip, oatmeal raisin, and sugar cookies made by the baker.
The probability of selecting a chocolate chip cookie is given as P(chocolate chip) = 0.75.
This means that out of all the cookies in the batch, 75% are chocolate chip cookies.
Since this probability is greater than 0.5 (which represents an event that is equally likely and unlikely), we can interpret it as indicating that it is likely to randomly select a chocolate chip cookie from the batch. In other words, if we were to randomly select a cookie from the batch, it is more likely that we would get a chocolate chip cookie than any other type of cookie.
Therefore, the correct answer is B) Likely.
The likelihood of randomly selecting a chocolate chip cookie is B. Likely.
How to calculate the probability?Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur or that a particular statement is true.
From the information, the baker made a batch of chocolate chip, oatmeal raisin, and sugar cookies. If P(chocolate chip) = 75%.
The likelihood of randomly selecting a chocolate chip cookie from the batch is 0.75. This implies that it is likely.
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There is a bag filled with 5 blue, 4 red and 3 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting 2 the same colour?
Step-by-step explanation:
that means 2 blue or 2 red or 2 green.
12 marbles in total.
when the first marble is picked, there are only 11 left.
a probability is always the ratio of
desired cases / totally possible cases
the probabilty to pull first a blue marble is
5/12 = 0.416666666...
if that is the case, then the probabilty for the second marble to be blue too is
4/11 = 0.363636363...
(there are only 4 blue marbles in a total of 11 marbles).
and the probabilty for getting 2 blue marbles is
5/12 × 4/11 = 20/132 = 5/33 = 0.151515151...
the probabilty to pull first a red marble is
4/12 = 1/3 = 0.333333333...
if that is the case, then the probabilty for the second marble to be red too is
3/11 = 0.272727272...
(there are only 3 red marbles in a total of 11 marbles).
and the probabilty for getting 2 red marbles is
1/3 × 3/11 = 3/33 = 1/11 = 0.0909090909...
the probabilty to pull first a green marble is
3/12 = 1/4 = 0.25
if that is the case, then the probabilty for the second marble to be green too is
2/11 = 0.181818181...
(there are only 2 green marbles in a total of 11 marbles).
and the probabilty for getting 2 green marbles is
1/4 × 2/11 = 2/44 = 1/22 = 0.045454545...
the probabilty to have any of these 3 mutually exclusive cases (to get a pair of the same color) is the sum of the probabilities :
0.151515151... + 0.09090909... + 0.045454545... =
5/33 + 1/11 + 1/22 = 10/66 + 6/66 + 3/66 = 19/66 =
= 0.287878787...
A half-century ago, the mean height of women in a particular country in their 20s was 62.8 inches. Assume that the heights of today's women in their 20s are approximately normally distributed with a standard deviation of 1.65 inches. If the mean height today is the same as that of a half-century ago, what percentage of all samples of 26 of today's women in their 20s have mean heights of at least 63.36 inches?
About% of all samples have mean heights of at least 63.36 inches. (Round to one decimal place as needed.)
About 4.24% of all samples of 26 of today's women in their 20s have mean heights of at least 63.36 inches.
Since the sample size is 26, we can use the central limit theorem and assume that the distribution of sample means is approximately normal with a mean of 62.8 inches and a standard deviation of 1.65 inches / sqrt(26) = 0.323 inches.
To find the percentage of samples with mean heights of at least 63.36 inches, we need to find the z-score corresponding to this value:
z = (63.36 - 62.8) / 0.323 = 1.74
Using a standard normal distribution table or calculator, we can find that the percentage of samples with z-scores greater than or equal to 1.74 is about 4.24%. Therefore, about 4.24% of all samples of 26 of today's women in their 20s have mean heights of at least 63.36 inches.
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