Given that W is the center of the circle and that TS = VU, Find VU if WX= 4 and WS = 6. Round the answer to two decimal places. A. 4.47 B. 7.07 C. 8.94 D. 9.13

The equation for the temperature, d, in terms of t is:
d(t) = 9 * cos[(π/12) * (t - 17)] + 80

To create an equation for the temperature, d, in terms of t, we will use the information given: the high temperature of 89 degrees at 5 pm and the average temperature of 80 degrees.

Determine the amplitude (A) of the sinusoidal function.
Amplitude = (High Temperature - Average Temperature)
A = (89 - 80)
A = 9

Determine the period (P) of the sinusoidal function.
Since the temperature pattern repeats every 24 hours, the period is 24 hours.

Determine the horizontal shift (HS) of the sinusoidal function.
Since the high temperature occurs at 5 pm (17 hours since midnight), the horizontal shift is 17 hours.

Determine the vertical shift (VS) of the sinusoidal function.
The vertical shift is the average temperature, which is 80 degrees.

Write the sinusoidal equation for the temperature, d, in terms of t.
Since the temperature reaches its peak (high temperature) at 5 pm, we will use the cosine function, as it starts at its peak value. The general form of the cosine function is:

d(t) = A * cos[(2π/P) * (t - HS)] + VS

Now, plug in the values found in steps 1-4:

d(t) = 9 * cos[(2π/24) * (t - 17)] + 80

So, the equation for the temperature, d, in terms of t is:

d(t) = 9 * cos[(π/12) * (t - 17)] + 80

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The area of the sector is  305. 2 cm²

The area of the shaded part is equivalent to the area of the sector.

The formula for determining the area of a sector is expressed with the equation;

A = θ/360 × πr²

Given that the parameters of the equation are;

From the diagram shown, we have;

Area = 120/360 × 3.14 × 18²

find the square values

Area = 0. 3 × 3. 14 × 324

multiply the values

Area = 305. 2 cm²

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Who are more likely to respond to an online poll about the Loch Ness monster may not be representative of the general population, and may have different beliefs about its existence.

The correct answer is: H0: p <= 0.5, H1: p > 0.5

Explanation:

The null hypothesis (H0) is that the proportion of people who believe that the Loch Ness monster exists is less than or equal to 0.5. The alternative hypothesis (H1) is that the proportion is greater than 0.5.

This is a one-tailed test, since we are only interested in whether the proportion is greater than 0.5.

The fact that Internet users who saw the question could decide whether to respond may affect the conclusion of the test, as it introduces potential bias into the sample. Those who are more likely to respond to an online poll about the Loch Ness monster may not be representative of the general population, and may have different beliefs about its existence.

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The matrices [T]β and [T]γ, which represent a linear transformation T with respect to ordered bases β and γ in vector space V, are similar.

To prove that [T]β and [T]γ are similar, we need to show that there exists an invertible matrix P such that [T]γ = P⁻¹ [T]β P.

Since β and γ are ordered bases of V, there exists an invertible change of basis matrix Q such that γ = βQ.

Then, we can write [T]γ = [T]βQ(Q⁻¹) = P⁻¹[T]β P where P = Q^(-1).

Therefore, [T]β and [T]γ are similar, and the matrix P is the change of basis matrix from β to γ.

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the 95% confidence interval for the mean prediction accuracy of nonpsychology students is (0.60 - 1.77, 0.60 + 1.77), which is approximately equal to (−1.17, 2.37).

To calculate the 95% confidence interval for the mean prediction accuracy of nonpsychology students, we can use the following formula:

CI = X  ± t(α/2, df) × (SE)

where:
- X  is the sample mean (0.60 in this case)
- t(α/2, df) is the t-value for the given level of significance (α), degrees of freedom (df) and two-tailed test. For a 95% confidence interval with df = n - 1 = 14, the t-value is 2.145
- SE is the estimated standard error of the mean (2.696 in this case)

Substituting the given values into the formula, we get:

CI = 0.60 ± 2.145 × (2.696/√15)

Simplifying the expression, we get:

CI = 0.60 ± 1.77

Therefore, the 95% confidence interval for the mean prediction accuracy of nonpsychology students is (0.60 - 1.77, 0.60 + 1.77), which is approximately equal to (−1.17, 2.37).

Note that the confidence interval includes the population mean of 75%, which suggests that the psychologist's prediction is correct - nonpsychology students are likely to do worse than psychology students at predicting the outcomes of psychology experiments. However, the confidence interval is quite wide, indicating that there is considerable uncertainty in our estimate of the mean accuracy for nonpsychology students based on this small sample size.

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An assembly time, chain saw requires 5 hours of assembly and a wood chipper 2 hours. From linear programming for maximum profit, number of chain saw assembled are 0 and number of wood chipper are 10.

This problem is related to the topic of linear programming. We use a graphical method to solve the equation. To determine the maximum profit we write the equation of profit. Let we consider x chain saw and y wood chipper. We have a chain saw requires 5 hours of assembly. But wood chipper require 2 hours of assembly. Maximum hours of assembly time available = 20 hours

So, 5x + 2y ≤ 20 --(1) and x ≥ 0, y≥ 0

Profit of chain saw = $190

Profit on wood chipper = $210

Maximize profit, Max Z = 190x + 210y

Now, using graphical method, draw a graph is present in above figure. To determine the profit at point A and B

At point A( 0, 10)

Z = 190 ×(0)+ 210× (10) = 2100 --(1)

At point B(5,0)

Z = 190×(5)+230×(0) = 950 --(2)

Clearly from equation (1), maximum profit is at point A, number of chain saw assembled are 0 and number of wood chipper arre 10.

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X1 = U1 + U-1 = U1 (since U-1 = 0);
X2 = U2 + U0 = U2 + 1 (since U0 = y1 - y0 = -1);
X3 = U3 + U1 = U3 + U1;
X4 = U4 + U3 + U2.

Innovations algorithm is a method for computing the values of a time series at each time point using the lag operator and the innovation or error terms. The lag operator, denoted by the symbol B, is used to shift the time index of a time series by one unit. Specifically, B multiplied by the time series X is equivalent to the time series X shifted one unit into the past.

We are given the MA(2) process X, = (1+0,B²)W with W, - WN(0,1), this means that X is a moving average process of order 2, where the current value of X depends on the current and two past innovation terms. The innovation terms U1, U2, U3, ... are uncorrelated random variables with zero mean and unit variance.

i) To use the innovations algorithm to find X1, X2, and X3 in terms of U1, U2, and U3, we first need to express X in terms of B and the innovation terms. Using the definition of the MA(2) process, we have:

Xt = (1 + 0*B^2)Wt + B* (1 + 0*B^2)Wt-1 + B^2* (1 + 0*B^2)Wt-2
= (1 + 0*B^2)Wt + B* (1 + 0*B^2)Wt-1 + B^2* (1 + 0*B^2)Wt-2
= Wt + B*Wt-1 + B^2*Wt-2

Next, we can use the innovations algorithm to express Xt in terms of the innovation terms U1, U2, and U3. The algorithm works as follows:

- Compute the initial values of the time series using the given initial conditions. In this case, we have y(0)=1+0*2, y(1)=0, y(2)=0, and y(h)=0 for h>3.
- For each time point t > 2, compute the innovation term Ut as the difference between the observed value yt and the predicted value based on the past observations up to time t-1. Specifically, we have:
Ut = yt - (1 + 0*B + 0*B^2) yt-1
= yt - yt-1

- Compute the current value of Xt as a linear combination of the past innovation terms Ut-1, Ut-2, and Ut-3, using the coefficients from the MA(2) process. Specifically, we have:
Xt = Ut + 0*Ut-1 + Ut-2
= Ut + Ut-2

Using this algorithm, we can compute the values of X1, X2, and X3 as follows:
- X1 = U1 + U-1 = U1 (since U-1 = 0)
- X2 = U2 + U0 = U2 + 1 (since U0 = y1 - y0 = -1)
- X3 = U3 + U1 = U3 + U1

ii) To find the value of X4, we can use the result from part i to express X4 in terms of the innovation terms U1, U2, U3, and U4. Specifically, we have:

X4 = U4 + U2
= y4 - y3 + y2 - y1
= (1 + 0*B^2) W4 - (1 + 0*B + 0*B^2) W3 + (1 + 0*B^2) W2 - (1 + 0*B + 0*B^2) W1
- (1 + 0*B + 0*B^2) W0
= W4 - W3 + W2 - W1
= U4 + U3 + U2

Therefore, X4 = U4 + U3 + U2.

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Answer:The answer is $911.68.

Step-by-step explanation:

Answer:

we will need 20 glass panels to cover the walls of the greenhouse with 5' x 4' glass panels.

Step-by-step explanation:

First, let's calculate the total wall area:

2 walls (10' x 8') = 160 sq. ft.

2 walls (15' x 8') = 240 sq. ft.

Total wall area = 400 sq. ft.

Next, let's calculate the total floor area:

15' x 5' = 75 sq. ft. (total floor area)

75 sq. ft. / 2 = 37.5 sq. ft. (floor area for tomatoes)

To cover the walls with glass panels, we need to divide the total wall area by the area of each glass panel:

Glass panel area = 5' x 4' = 20 sq. ft.

400 sq. ft. (total wall area) / 20 sq. ft. (area of each glass panel) = 20 glass panels

Therefore, we will need 20 glass panels to cover the walls of the greenhouse with 5' x 4' glass panels.

To reflect a figure over the y-axis, we simply change the sign of its x-coordinates while keeping the y-coordinates the same. So, the coordinates of the vertices after a reflection over the y-axis would be:

A'(-2, 1), B'(-1, 3), C'(1, 2), D'(2, 0)

When we reflect a figure over the y-axis, we are essentially flipping the figure horizontally along a vertical line passing through the origin.

This means that every point on the original figure is reflected across this vertical line, resulting in a new figure that is a mirror image of the original.

Thus, the coordinates of the vertices after a reflection over the y-axis are A'(-2, 1), B'(-1, 3), C'(1, 2), and D'(2, 0).

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In part (d), we had to calculate the probability of choosing 4 out of the 18 remaining students because we know that Bob is not chosen.

The probability that Billy is among the 5 selected students is given by the number of ways Billy can be selected out of 20 students, divided by the total number of ways to select 5 students out of 20:

P(Billy is selected) = 1/ C(20,5) = 1/15504

b. The probability that both Billy and Bob are chosen among the 5 students is given by the number of ways both Billy and Bob can be selected out of 20 students, divided by the total number of ways to select 5 students out of 20:

P(Billy and Bob are selected) = C(2,2) * C(18,3) / C(20,5) = 816/15504 = 0.0526

c. The probability that Bob or Billy is chosen among the 5 students is given by the sum of the probabilities of Billy being chosen and Bob being chosen, minus the probability of both Billy and Bob being chosen (to avoid double-counting):

P(Bob or Billy is selected) = P(Billy is selected) + P(Bob is selected) - P(Billy and Bob are selected)

= 1/ C(20,5) + 1/ C(20,5) - 816/15504

= 2/15504 + 2/15504 - 816/15504

= 168/15504 = 0.0108

d. The probability that Bob is not chosen and Billy is chosen among the 5 students is given by the number of ways to choose 4 students out of the 18 remaining students, multiplied by the number of ways to choose Billy from those 4 students, divided by the total number of ways to choose 5 students out of 20:

P(Bob is not chosen and Billy is chosen) = C(18,4) * C(1,1) / C(20,5) = 3060/15504 = 0.1971

Explanation: In order to calculate the probabilities, we used the formula for the probability of a combination, which is the number of favorable outcomes divided by the total number of possible outcomes. In part (c), we had to subtract the probability of both Billy and Bob being chosen to avoid double-counting. In part (d), we had to calculate the probability of choosing 4 out of the 18 remaining students because we know that Bob is not chosen.

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The president of Doerman Distributors, Inc., believes that 27% of the firm's orders come from first-time cu:

sample of 100 orders will be used to estimate the proportion of first-time customers. Use z-table.

0.30. What is the sampling distribution of p for this study?

a. Assume that the president is correct and p

=

Hint(s) Che

A normal distribution because np and n(1-p) are both greater than 5 v

b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)?

c. What is the probability that the sample proportion will be between 0.25 and 0.35 (to 4 decimals)?

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Partially Correct

Answer:

Step-by-step explanation:

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a. Since the sample size is large enough (n=100) and the expected number of first-time customers (np=27) and the expected number of repeating customers (n(1-p)=73) are both greater than 5, we can assume that the sampling distribution of the sample proportion p is approximately normal with mean μ=p=0.27 and standard deviation σ=sqrt[p(1-p)/n]=sqrt[(0.27)(0.73)/100]=0.046.

b. To find the probability that the sample proportion will be between 0.20 and 0.40, we need to standardize the values using the formula z = (x - μ) / σ, where x is the sample proportion, μ is the population proportion, and σ is the standard deviation of the sampling distribution of p. Then we can use a standard normal distribution table (z-table) to find the corresponding probabilities.

z(0.20) = (0.20 - 0.27) / 0.046 = -1.52

z(0.40) = (0.40 - 0.27) / 0.046 = 2.83

Using the z-table, the probability of getting a z-score between -1.52 and 2.83 is approximately 0.9747. Therefore, the probability that the sample proportion will be between 0.20 and 0.40 is 0.9747 (to 4 decimals).

c. To find the probability that the sample proportion will be between 0.25 and 0.35, we can follow the same steps as in part b:

z(0.25) = (0.25 - 0.27) / 0.046 = -0.43

z(0.35) = (0.35 - 0.27) / 0.046 = 1.74

Using the z-table, the probability of getting a z-score between -0.43 and 1.74 is approximately 0.5267. Therefore, the probability that the sample proportion will be between 0.25 and 0.35 is 0.5267 (to 4 decimals).

The probability that a randomly selected point within the circle falls in the

red-shaded triangle is 0.14.

It is the chance of an event to occur from a total number of outcomes.

The formula for probability is given as:

Probability = Number of required events / Total number of outcomes.

Example:

The probability of getting a head in tossing a coin.

P(H) = 1/2

We have,

Area of the circle.

= πr²

= 3.14 x 15 x 15

= 706.5

Area of the shaded triangle.

= 1/2 x base x height
= 1/2 x 12 x 16

= 6 x 16

= 96

Now,

The probability that a randomly selected point within the circle falls in the

red-shaded triangle.

= Area of shaded triangle /Area of the circle

= 96/706.5

= 0.14

Thus,

The probability that a randomly selected point within the circle falls in the

red-shaded triangle is 0.14.

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Answer:  A

Step-by-step explanation:

The statement is true. A put option is a financial contract that provides the holder with the right, but not the obligation, to sell an underlying asset, such as 100 shares of common stock, at a predetermined price, known as the strike price, before or at the expiration date of the option. If the price of the asset decreases below the strike price, the holder of the put option can sell the asset at the higher strike price and make a profit. However, if the price of the asset increases above the strike price, the holder can simply do nothing and let the option expire, without any obligation to sell the asset.

The price of a put option is influenced by various factors, such as the price of the underlying asset, the strike price, the time until expiration, and the volatility of the asset's price. Generally, the higher the volatility and the longer the time until expiration, the higher the price of the put option.

Selling a put option involves taking on the obligation to buy the underlying asset at the strike price, if the holder decides to exercise the option. Selling put options can be a strategy for generating income, but it also involves risks, such as potential losses if the price of the asset decreases significantly.

In summary, a put option is a security that provides the holder with the right to sell an underlying asset at a predetermined price, but not the obligation to do so. The price of a put option is influenced by various factors, and selling a put option involves taking on the obligation to buy the asset.

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Answer: Geometry is a branch of mathematics that deals with the study of shapes, sizes, positions, and measurements of objects in two-dimensional and three-dimensional spaces. It involves analyzing and calculating angles, lengths, areas, volumes, and other properties of various figures such as triangles, circles, squares, cubes, and spheres. Geometry is used in many fields including architecture, engineering, physics, and computer graphics.

The Intermediate Value Theorem states that for any value c between the function's values at the endpoints (f(a) and f(b)), there exists a value x in the interval [a, b] such that f(x) = c.

The assumptions (or conditions) required for the Intermediate Value Theorem are:

1. The function is continuous: The function must be continuous on the closed interval [a, b]. This means that there are no breaks, jumps, or holes in the graph of the function within the given interval.

2. The interval is closed and bounded: The interval [a, b] must be a closed interval, meaning it includes both endpoints a and b. Additionally, the interval must be bounded, meaning the function has a maximum and a minimum value within the interval.

By satisfying these two assumptions, the Intermediate Value Theorem states that for any value c between the function's values at the endpoints (f(a) and f(b)), there exists a value x in the interval [a, b] such that f(x) = c.

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The upper bound should be entered in cell A29 and the lower bound in cell A30.

Assuming the data is in cells A1 to A15, the Excel functions to calculate the required statistics are:

Mean (average) waiting time:

= AVERAGE(A1:A15)

Result: This will return the average waiting time of the 15 customer phone calls.

Median waiting time:

= MEDIAN(A1:A15)

Result: This will return the median waiting time of the 15 customer phone calls.

Standard deviation of waiting time:

= STDEV(A1:A15)

Result: This will return the standard deviation of the waiting time of the 15 customer phone calls.

95% Confidence Interval of the mean waiting time:

Lower bound: = AVERAGE(A1:A15) - (T.INV(0.05,14)*STDEV(A1:A15)/SQRT(15))

Upper bound: = AVERAGE(A1:A15) + (T.INV(0.05,14)*STDEV(A1:A15)/SQRT(15))

Result: This will return the lower and upper bounds of the 95% confidence interval of the mean waiting time of the 15 customer phone calls.

The upper bound should be entered in cell A29 and the lower bound in cell A30.

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The correct answer is B. For a 95% confidence level, the z* value should be calculated using qnorm(0.975).

The proposed solution to construct a 95% confidence interval for the population proportion has several errors. Let's review each of them in detail:

A. phat was already provided, so dividing that value by the sample size is incorrect:

This is incorrect because phat represents the sample proportion, which is the point estimate of the population proportion. The sample proportion alone is not enough to estimate the variability of the sample proportion, which is required to construct a confidence interval. Therefore, we need to divide phat by the sample size to obtain the standard error of the sample proportion.

B. For a 95% confidence level, the z* is calculated by qnorm(0.95):

This is incorrect because a 95% confidence level corresponds to a 1.96 standard error for a two-tailed test, not a 1.645 standard error. Therefore, we need to use qnorm(0.975) or qnorm(1 - 0.025) to find the z* value.

C. You cannot use "phat" in an R Studio command. The decimal must be written:

This is incorrect because "phat" is a valid R Studio command that represents the sample proportion. However, it is important to define this variable beforehand to avoid any errors.

D. You cannot have negative values as one of the limits on your interval. This should be made positive:

This is correct. A confidence interval cannot have negative values as limits since proportions must be between 0 and 1. Therefore, we need to take the absolute value of the lower limit.

E. The proposed solution is correct:

This is incorrect, as discussed above. The correct solution should use the formula:

phat +/- z* * sqrt(phat*(1-phat)/n)

where phat = 0.43, n = 200, and z* is the critical value of the standard normal distribution corresponding to a 95% confidence level, which is approximately 1.96. Therefore, the correct 95% confidence interval is:

0.43 +/- 1.96 * sqrt(0.43*(1-0.43)/200) = (0.369, 0.491).

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1. Circling non-ratio.

2. Circling ratios that are fully simplified.

Variables in a proportion:

3. Solve for the variable in each proportion.

a. 3/9 = x/12

To solve for x, cross-multiply and simplify:

3/9 = x/12

(3)(12) = (9)(x)

36 = 9x

x = 4

Therefore, the solution is x = 4.

b. 20/y = 4/3

To solve for y, cross-multiply and simplify:

20/y = 4/3

(4)(y) = (20)(3)

4y = 60

y = 15

Therefore, the solution is y = 15.

4. Solve for the variable in each proportion.

a. 2/14 = (x+1)/28

To solve for x, cross-multiply and simplify:

2/14 = (x+1)/28

(2)(28) = (14)(x+1)

56 = 14x + 14

42 = 14x

x = 3

Therefore, the solution is x = 3.

b. 3/(2y-3) = 6/y

To solve for y, cross-multiply and simplify:

3/(2y-3) = 6/y

(3)(y) = (6)(2y-3)

3y = 12y - 18

-9y = -18

y = 2

Therefore, the solution is y = 2.

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The  equation of best fit is ŷ = 2.69152X + 3.45818.

From the data we cab write,

Sum of X = 45

Sum of Y = 155.7

Mean X = 4.5

Mean Y = 15.57

Sum of squares (SSX) = 82.5

Sum of products (SP) = 222.05

So, Regression Equation = ŷ = bX + a

Now, b = SP/SSX = 222.05/82.5 = 2.69152

and, a = MY - bMX = 15.57 - (2.69*4.5) = 3.45818

Thus, the equation of best fit is ŷ = 2.69152X + 3.45818.

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Answer:

If not choose all that apply, technological process will shift the PPC right (outwards)

Step-by-step explanation:

The production possibilities curve represents the maximum amount of goods and services that a country can produce with its limited resources. It is a graphical representation of the trade-offs a country must make between producing one good or service over another. Any factor that can increase production will shift the curve outward, indicating an increase in the maximum amount of goods and services that can be produced.

An increase in the production of investment goods will shift the curve outward because it will increase the amount of capital goods that can be used to produce other goods and services. Investment goods are items like machinery, equipment, and infrastructure that are used to produce other goods and services. By increasing the production of investment goods, a country can increase its productive capacity, allowing it to produce more goods and services in the future.

An increase in the production of consumer goods will not shift the curve outward because it does not increase the country's productive capacity. Consumer goods are items that are consumed immediately, like food, clothing, and electronics. While an increase in the production of consumer goods can lead to short-term economic growth, it will not increase the country's long-term productive capacity.

Technological progress, on the other hand, will shift the production possibilities curve outward. Technological progress refers to advancements in technology that increase productivity, reduce costs, and improve efficiency. By adopting new technologies, a country can produce more goods and services with its existing resources, allowing it to shift its production possibilities curve outward.

In conclusion, an increase in the production of investment goods and technological progress will shift the production possibilities curve outward, while an increase in the production of consumer goods will not.

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From percentage formula, in a vine gunshot sound effect download unblocked restaurants, the number of expected Italian restaurants in next 24 menus slipped under Eli's door is six.

We have a Vine gunshot sound effect download unblocked Restaurants often slip takeout menus. Total collected menus by Eli = 28

In this 28 menus, 7 for Italian food. We have to determine the how many menus in next 24 menus slipped under Eli's door expected from Italian restaurants. Percentage is calculated by dividing the value by the total value, and then multiplying the resultant value by 100.

Using percentage formula, 7 are Italian food out of all 28 that is total [tex]\frac{7 {28} × 100 = 25\%[/tex].

Let the required number of menus slipped under Eli's door should you expect to be from Italian restaurants be x. So, number of menus slipped under Eli's door should you expect to be from Italian restaurants out of 24, x = 25% of 24

=> [tex]\frac{25}{100} × 24 = x[/tex]

=> x = 6

Hence, required value is 6.

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At the end of three years, Daniel would have saved $6749.

When interest is calculated on a principal amount of money using the compound interest method, the interest gained is periodically added back to the principal and interest is then calculated on the new principal amount.

We know that;

A = P(1 + r/n)^nt

A =amount

r = rate

P = principal

n = Number of times compounded

t = time

Thus;

A = 6000(1 + 0.04)^3

A = $6749

Thus the compound amount saved is  $6749

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The average rate of change of the given function graph between the two given values is: 6

The Average Rate of Change of a function is one that is defined as the average rate at which one quantity is changing with respect to another thing changing. Thus, an average rate of change function is basically a process that helps to calculate the amount of change in one item divided by the corresponding amount of change in another.

It is given by the formula:

f'(x) = [f(b) - f(a)]/(b - a)

From the graph attached, we have that:

f(-4) = -6

f(-2) = 6

Thus:

f'(x) = (6 - (-6))/(-2 - (-4))

f'(x) = (6 + 6)/(-2 + 4)

f'(x) = 6

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Math is not relevant to the research question as it is not directly related to smartphone ownership. Verbal, Credits, Year, Exercise, Sleep, Veg, and Cell are also not relevant to the research question as they do not provide information on smartphone ownership or the proportion of smartphone owners at a specific university. The relevant variable in this research question is smartphone ownership.

The relevant variable in this research question is smartphone ownership. This variable is quantitative as it involves measuring the proportion of smartphone owners at a specific university. The proportion of smartphone owners can be expressed as a percentage or a decimal value, which are both quantitative measurements.

Categorical variables are not relevant to this research question as they do not provide information on the proportion of smartphone owners. Categorical variables involve categorizing data into groups or categories, such as gender or race, which are not directly related to smartphone ownership.

In summary, the only relevant variable in this research question is smartphone ownership, which is a quantitative variable.

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Means that we are 90% confident that the true proportion of masks with lenses that pop out at 250° is between 7.6% and 32.4%.

We can use the formula for a confidence interval for a proportion:

CI = p ± z*sqrt(p(1-p)/n)

where:

p = sample proportion = 11/55 = 0.2

z = the z-score for a 90% confidence level, which is 1.645

n = sample size = 55

Plugging in the values, we get:

CI = 0.2 ± 1.645*sqrt(0.2(1-0.2)/55)

CI = 0.2 ± 0.124

Therefore, the 90% confidence interval for the true proportion of masks of this type whose lenses would pop out at 250° is (0.076, 0.324). This means that we are 90% confident that the true proportion of masks with lenses that pop out at 250° is between 7.6% and 32.4%.

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Rose sold 53.6 pretzels.

P x ? + W = 135

2.50 x 53.6 + 1.00 = 135

The PMT or monthly contribution is pegged at $764.57

Individuals employ a financial tactic known as a retirement plan to accumulate and invest funds, which will enable them to have access to revenue during their retirement period.

The aim of this approach is to certitude that these individuals possess ample income to maintain their standard of living and fulfil any additional monetary requirements once they terminate employment.

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Answer:

The graph shown is the answer

Step-by-step explanation:

It says why and how its the answer

The scatter plot shows that there is no strong correlation between average weight and life expectancy for the 12 dog breeds. The coefficient of correlation for this adult weight data to be -0.123, which is very near to 0.

The adult weight of a person can vary greatly depending on several factors, including genetics, age, gender, height, muscle mass, and overall health. However, a healthy weight range for adults is typically determined by body mass index (BMI), which is calculated by dividing weight in kilograms by height in meters squared.

We can use the average weight as the x-value and the average life expectancy as the y-value to represent the data as ordered pairs. Following are the ordered pairs for the provided data:

(125, 57.5)

(62.5, 49)

(12, 16)

(12.3, 12)

(11, 11)

We may plot these ordered pairs on a scatter plot to show the form of the data. As for the story:

We can observe from the scatter plot that there is no obvious pattern formed by the data points. There is no discernible pattern or connection between the two variables, and the spots are dispersed throughout the plot. As a result, the data's shape can be described as random or dispersed.

We can calculate the correlation coefficient to provide more evidence for this. The variables do not have a linear relationship if the correlation coefficient is close to zero. we can calculate the coefficient of correlation for this data to be -0.123, which is very near to 0.

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