The coordinate of point X on PQ such that PX to XO is 5:1 is

(L3) Circumcenters and centroids involve midpoint.   Circumcenters and centroids are important points in a triangle that are determined by the location of the vertices and midpoints of the sides.

The circumcenter is the point where the perpendicular bisectors of the sides of a triangle intersect, while the centroid is the point where the medians of a triangle intersect. Both of these points involve the midpoint of the sides of the triangle. The circumcenter involves the midpoint of the perpendicular bisectors of the sides, while the centroid involves the midpoint of the sides themselves. The location of these points can provide valuable information about the geometry of the triangle, such as its center of mass or the location of its circumcircle.

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The correlation coefficient is approx 0.57, with a positive direction; the slope is 0.41.it seems that the correlation coefficient is approximately 0.57, with a slope of 0.41, indicating a moderately strong positive linear relationship.

To analyze the relationship between age and bone density loss, follow these steps:

1. Open the Excel file containing the data.
2. Create a scatter plot by selecting the data for age (x variable) and bone density loss (y variable).
3. Insert a scatter plot chart from the "Insert" tab in Excel.
4. Add a trendline to the scatter plot by right-clicking on any data point, selecting "Add Trendline," and choosing "Linear."
5. Display the equation and R-squared value on the chart by checking the "Display Equation on chart" and "Display R-squared value on chart" options in the trendline settings.

Based on the information provided in the options, it seems that the correlation coefficient is approximately 0.57, with a slope of 0.41, indicating a moderately strong positive linear relationship. This corresponds to option A:

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Original statement: Any valid argument has a true conclusion. Negation: There exists a valid argument with a false conclusion.

To write a negation for a statement, we use the word “not” or its equivalent to express the opposite of the original statement. For example, the negation of “All dogs are mammals” is “Not all dogs are mammals” or “Some dogs are not mammals”. Here are the negations for the given statements:

a. The negation of “Any valid argument has a true conclusion” is “Not any valid argument has a true conclusion” or “Some valid arguments do not have a true conclusion”.

b. The negation of “Every real number is positive, negative, or zero” is “Not every real number is positive, negative, or zero” or “There exists a real number that is not positive, negative, or zero”.

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The variation of the predicted population mean from the sample mean as per the given data is equal to for sample 1 =6, for sample 2 = 13, for sample 3 = 1.

For sample 1, 2, 3,

Predicted mean are 34 , 15 , and 29.

Actual mean are 28, 28, 28

To compute the variation of each predicted population mean from the sample means.

Required to calculate the difference between the predicted mean and the actual mean for each sample.

And then take the absolute value of each difference.

The formula for this is written as,

|Predicted Mean - Actual Mean|

Using the values from the table, we get,

For Sample 1,

|34 - 28| = 6

For Sample 2,

|15 - 28| = 13

For Sample 3,

|29 - 28| = 1

Therefore, the variation of the predicted population mean from the sample mean is 6 for Sample 1, 13 for Sample 2, and 1 for Sample 3.

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Answer: Sample 1: 6   Sample 2: -13  Sample 3: 1

Step-by-step explanation:

The prediction for the number of passwords in which the first character is a number is given as follows:

139 passwords.

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

The passwords have the first character chosen as follows:

Hence the probability of a number is given as follows:

p = 10/(10 + 26)

p = 10/36

p = 5/18.

Out of 500 passwords, the expected number is then given as follows:

E(X) = 500 x 5/18

E(X) = 139 passwords.

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Koda who is making birdhouses for a park needs 16 trapezoids for 8 birdhouses, 12 rectangles for 3 birdhouses, and 8 triangles when she has 4 squares,

Koda is making birdhouses for a park. For one birdhouse she required 2 trapezoids, 1 square 2 triangles and 4 rectangles.

For the 8 birdhouses, the number of trapezoids she need is,

Trapezoids=2 x 8

Trapezoids=16

For the 3 birdhouses, the number of rectangle she need is,

Rectangle =4 x 3

Rectangle=12

The number of birdhouses when she uses 4 square,

Bird house=4 x 1

Bird house=4

Thus, the number of triangles for 4 birdhouses is,

Triangle=2 x 4

Triangle=8

Hence, Koda who is making birdhouses for a park needs 16 trapezoids for 8 birdhouses, 12 rectangles for 3 birdhouses, and 8 triangles when she has 4 squares,

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The answer  is that the quadratic function is the one that models the situation.

The function that models the situation is a quadratic function in the form of ax² + bx + c.

In this scenario, the engineer is designing a flashlight with a parabolic mirror. A parabolic mirror has a shape that can be represented by a quadratic function. Quadratic functions are typically in the form of f(x) = ax² + bx + c, where a, b, and c are constants.

The explanation for this is that a parabolic mirror reflects light in a way that the reflected rays converge at the focus, which is the vertex of the parabola. This means that the distance between the reflector and the light source should be the same as the distance between the reflector and the focus. The shape of the parabolic mirror is defined by a quadratic function, which is y = ax²

The variable y represents the height of the mirror at a given point, x represents the distance from the vertex, and a is a constant that determines the steepness of the curve. Therefore, the engineer can use this equation to design the parabolic mirror that will maximize the output of the flashlight.
.

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Answer:

<1 = 120

<2 = 32

Sorry for bad handwriting

Using the elimination method, we can find that Eileen has 23 dimes and 17 quarters in her piggy bank.

A frequent approach for resolving a set of two-variable linear equations is the elimination method. The goal of this approach is to remove one of the variables by combining or deleting the two equations. The goal is to create a new equation with one variable removed, leaving a single variable in the equation.

Let x be the number of dimes and y be the number of quarters.

To solve for x and y, we can use the elimination method.

We can multiply equation 1 by 0.10 and subtract it from equation 2 to eliminate x:

0.10x + 0.25y = 6.55

0.10x + 0.10y = 4

0.15y = 2.55

y = 17

Substituting y = 17 into equation 1, we get:

x + 17 = 40

x = 23

Therefore, using the elimination method, Eileen has 23 dimes and 17 quarters in her piggy bank.

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The assumption for linear regression analysis that is violated when the dependent variable is binary is the linearity of observed and predicted values. Binary variables only take on two values (0 or 1), and thus cannot be plotted on a linear regression line. Therefore, linear regression analysis is not appropriate for binary variables. Logistic regression is a more appropriate analysis method for binary variables.

Hi! If the dependent variable is binary and linear regression analysis is used, then the assumption for linear regression analysis that is violated is the "normality of error." This is because binary variables, which take only two values (e.g., 0 and 1), do not follow a continuous normal distribution, and thus, the errors in prediction are not likely to be normally distributed. Linear regression is designed for continuous dependent variables, so it's not ideal for analyzing binary outcomes.

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The probabilities of the given events for all four children are girls is 0.0625, two girls and two boys is 0.375, the youngest child is a girl is 0.5 and the oldest child is a boy is 0.5

What is probability?

Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

Since the probability of giving birth to a boy or a girl is 0.5, we can use the binomial probability formula to calculate the probabilities of the given events:

1) Probability of all four children being girls:

The probability of having a girl for each birth is 0.5, so the probability of having all four children as girls is (0.5)⁴ = 0.0625 or 6.25%.

2) Probability of having two girls and two boys:

The number of ways to have two girls and two boys in a family of four children is the number of combinations of 4 children taken 2 at a time, which is 6. The probability of having two girls and two boys in any of these combinations is (0.5)⁴ = 0.0625 or 6.25%. Therefore, the probability of having two girls and two boys is 6 * 0.0625 = 0.375 or 37.5%.

3) Probability of the youngest child being a girl:

The probability of having a girl for any birth is 0.5, so the probability of the youngest child being a girl is 0.5.

4) Probability of the oldest child being a boy:

Since there are 2 possibilities for the gender of the oldest child (boy or girl), the probability of the oldest child being a boy is 0.5.

Therefore, the probabilities of the given events are:

All four children are girls: 0.0625 or 6.25%

Two girls and two boys: 0.375 or 37.5%

The youngest child is a girl: 0.5 or 50%

The oldest child is a boy: 0.5 or 50%

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The disadvantages of the mean include: I)The sensitivity to individual score values makes the mean susceptible to the influence of outliers.

II)The value of the mean is not affected by the magnitude of each score in the distribution.

III)It doesn't take into account the values of scores outside of the most frequent score.

IV)The influence of outliers may cause the mean to be artificially high or low.

The disadvantages of the mean include:

I) The sensitivity to individual score values makes the mean susceptible to the influence of outliers. Meaning of it is extreme values can significantly impact the mean, making it less representative of the overall data set.

II) The value of the mean is affected by the magnitude of each score in the distribution. The reason of it is the mean is calculated by adding all the scores and dividing by the number of scores.As a result larger scores have a greater effect on the mean than smaller scores.

III) It doesn't take into account the values of scores outside of the most frequent score. This disadvantage refers to the fact that the mean does not directly consider the frequency of each score, which can be a limitation when analyzing data sets with heavily skewed distributions.

IV) The influence of outliers may cause the mean to be artificially high or low.

It is a direct result of the mean's sensitivity to different score values and outliers as mentioned earlier.

Therefore, required solution is disadvantages of the mean are its sensitivity to individual score values and outliers, the fact that it is affected by the magnitude of each score in the distribution, its inability to take into account the values of scores outside of the most frequent score, and the potential for outliers to cause the mean to be artificially high or low.

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Answer:

19

Step-by-step explanation:

The measure of an inscribed angle is half of the measure of its intercepted arc.

6x + 17 = (1/2)(262)

6x + 17 = 131

6x = 114

x = 19

The correct matches for the probabilities are:

The probabilities are calculated based on the result of the spin.

The results of the spin;

A, A

A, B

A, C

A, D

B, A

B, B

B, C

B. D

C, B

C, C

C, D

D, B

D, C

D, D

The probabilities are as follows:

Spinner landing on at least one A is 7/16 since there are 7 out of 16b options having an A.

Spinner landing on C and D in any order 1/8 since there are 2 such occurrences out of 16.

Spinner landing on two Bs is 1/16 since there is 1 such occurrence out of 16.

Spinner landing on C on the second spin 1/4 since there are 4 such occurrences out of 16.

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The critical value z* for a 98% confidence level is 2.33.

A critical value is a value used as a cut-off to indicate the beginning of a zone where the test statistic from a hypothesis test is unlikely to fall.

To find the critical value z* for a 98% confidence level, we need to find the z-value that corresponds to an area of 0.98 in the standard normal distribution.

Using a standard normal table or a calculator, we can find the z-value that corresponds to an area of 0.98:

z* = 2.33

Therefore, the critical value z* for a 98% confidence level is 2.33.

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c. (x1, x2) = (5, 3) d. (x1, x2) = (3, 5) are The feasible solutions.

To determine if a solution is feasible, we need to check if it satisfies all the constraints.

For solution (a):

10x1 + 5x2 = 10(5) + 5(0) = 50 (satisfies constraint 1)

x1 + 2x2 = 5 + 2(0) = 5 (does not satisfy constraint 2)

Therefore, solution (a) is not feasible.

For solution (b):

10x1 + 5x2 = 10(5) + 5(1) = 55 (satisfies constraint 1)

x1 + 2x2 = 5 + 2(1) = 7 (does not satisfy constraint 2)

Therefore, solution (b) is not feasible.

For solution (c):

10x1 + 5x2 = 10(5) + 5(3) = 65 (satisfies constraint 1)

x1 + 2x2 = 5 + 2(3) = 11 (satisfies constraint 2)

Therefore, solution (c) is feasible.

For solution (d):

10x1 + 5x2 = 10(3) + 5(5) = 55 (satisfies constraint 1)

x1 + 2x2 = 3 + 2(5) = 13 (satisfies constraint 2)

Therefore, solution (d) is feasible.

For solution (e):

10x1 + 5x2 = 10(0) + 5(5) = 25 (does not satisfy constraint 1)

x1 + 2x2 = 0 + 2(5) = 10 (satisfies constraint 2)

Therefore, solution (e) is not feasible.

The feasible solutions are (c) and (d).

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The sample mean is not given in the question, but we can calculate it by taking the midpoint of the confidence interval.

The midpoint is (185+205)/2 = 195. Therefore, the sample mean is 195. The margin of error is the range of values around the sample mean within which the true population mean is likely to lie.

It is calculated by subtracting the lower limit of the confidence interval from the sample mean, or by subtracting the sample mean from the upper limit of the confidence interval. In this case, the margin of error is (205-195)/2 = 5. The 95% confidence interval means that if we were to take repeated samples of size 49 from the same population, 95% of those intervals would contain the true population mean.

This level of confidence is determined by the level of significance, which is usually set at 5% (or 0.05). This means that there is a 5% chance that the true population mean lies outside of the given confidence interval.

In summary, from a sample of size 49, we can say with 95% confidence that the true population mean lies between 185 and 205. The sample mean is 195 and the margin of error is 5.

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The free-response and the time constant for each model is

A) [tex]x(t) = 6e^{-0.875t}[/tex] , T = 1.14

B) [tex]x(t) = 3e^{-0.416t}[/tex], T = 2.4

C) [tex]x(t) = -2e^{-0.461t}[/tex], T = 2.16

D) [tex]x(t) = 9e^{0.714t}[/tex] , T= -1.4

The first-order system is represented as

mx + cx = f

The free-response is obtained when f = 0 as

[tex]x(t) = x(0)e^{\frac{-ct}{m} }[/tex]

Time constant T is

[tex]T = \frac{m}{c}[/tex]

A) 16x + 14x = 0 , x(0) = 6

On comparing m = 16 , c = 14

Free response when f = 0 as

[tex]x(t) = 6e^{\frac{-14t}{16} }[/tex]

[tex]x(t) = 6e^{-0.875t}[/tex]

Time constant

T = 16/14

T = 1.14

The system is stable because 1/T > 0

B) 12x + 5x = 15, x(0) = 3

Free response when f = 0 as

[tex]x(t) = 3e^{\frac{-5t}{12 }[/tex]

[tex]x(t) = 3e^{-0.416t}[/tex]

Time constant

T = 12/5

T = 2.4

The system is stable because 1/T > 0

C) 13x + 6x = 0, x(0)= -2

Free response when f = 0 as

[tex]x(t) = -2e^{\frac{-6t}{13 }[/tex]

[tex]x(t) = -2e^{-0.461t}[/tex]

Time constant

T = 13/6

T = 2.16

The system is stable because 1/T > 0

D) 7x - 5x = 0, x(0)= 9

Free response when f = 0 as

[tex]x(t) = 9e^{\frac{5t}{7 }[/tex]

[tex]x(t) = 9e^{0.714t}[/tex]

Time constant

T = -7/5

T = -1.4

The system is not stable because 1/T > 0

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Answer:

[tex] log(x + 7) > log(3x) [/tex]

[tex]x + 7 > 3x[/tex]

[tex]7 > 2x[/tex]

[tex]0 < x < 3.5[/tex]

{x | x > 0 and x < 3.5}

The initial value for the equation is 198. The base, denoted by b, for the equation is 1.27. Therefore, the type of change represented is exponential growth because the value of y is increasing at a constant rate as the value of x increases.

a.The initial value for the equation is "a", which in this case is 198. The base, denoted by "b", for the equation is 1.27. Therefore, the type of change represented is exponential growth because the base

(b) is greater than 1, indicating a continuous increase in the value of y as the exponent "n" increases.

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The distance between two vertical white gridlines on a graph typically represents a specific interval or scale.

Based on the options you provided, the correct answer would depend on the context of the graph.

If the graph is displaying population data over time, the distance between two vertical white gridlines could either represent:

- A time span of 20 years
- A time span of 50 years

If the graph is displaying population increase directly, the distance could represent:

- A population increase of 20 million
- A population increase of 2 billion

To determine the correct answer, please examine the labels and context of the graph you are analyzing.

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Answer:

2) Negative one-third

Step-by-step explanation:

In questions such as these, always best to draw the number line for easier visualization

Attached is the number line representing the situation described

The number line goes from -1 to 1 with 0 in the middle of (-1, 1) segment

Since there are 3 equal spaces between the numbers each "space" or the smallest segment is 1/3 units long. In other words each mark is separated from the next mark by a distance of 1/3

The point A is 1 mark to the left of 0 ; this places point A at the - 1/3 mark

Therefore the correct answer is

2) Negative one-third

NASA would need a sample size of at least 1499 people.

To determine the sample size required for estimating the fraction of people who black out at g forces greater than 6, we can use the following formula:

[tex]n=\frac{Z^2\times p\times (1-p)}{E^2}[/tex]

n = sample size

Z = z-score

p = estimated population proportion from the earlier study (p = 0.46)

(1 - p) = proportion of the population that does not black out at g forces greater than 6

E = desired margin of error (E = 0.03)

n = ((2.33)² × 0.46 × (1-0.46))/(0.03)²

n = 1498.3764

Rounding up to the next integer, we get a required sample size of n = 1499.

Therefore, NASA would need a sample size of at least 1499 people to estimate the fraction of people who black out at g forces greater than 6, with a 98% confidence level and a margin of error of at most 0.03.

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For a sample of 50 customers of last year's customers, the expected number of customers requiring a recall is equals to the 7.5 customers.

The expected value or say mean of a binomial distribution is determined by multiplying the number of trials (n) by the probability of successes (p), that is E(x) = n × p. We have a LaRusso Auto Group of vehicles. Total sales of cars in last year

= 5,000

Number of defective cars in sold cars

= 750

For a random sample of last year's customers, sample size, n= 50

We have to determine the expected number of customers requiring a recall.

Now, the probability of defective cars and customers make a factory recall for dealer correction, p = [tex]\frac{750}{5000} [/tex] = 0.15

So, the sales of cars in Store follows the binomial distribution with parameters n, p. Using expected value or number formula, E(x) = n×p

= 50 × 0.15 = 7.5

Hence, required value is 7.5 customers.

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As x approaches 0, (5x⁴+8x²)/(3x⁴-16x²) is -1/2.

What is L'Hopital's rule?

L'Hopital's rule which states that if the limit of a function f(x)/g(x) as x approaches a is of the form 0/0 or ∞/∞, then the limit is equal to the limit of the derivative of f(x) divided by the derivative of g(x) as x approaches a.

Here given expression is (5x⁴+8x²)/(3x⁴-16x²)

Here we want to find limit of the function (5x⁴+8x²)/(3x⁴-16x²) as x approaches 0.

Applying L'Hopital's rule,

(20x³+16x)/(12x³-32x)

Now, as x approaches 0, we can evaluate the limit by plugging in x=0 in the above expression. However, plugging in x=0 results in a denominator of 0, which is undefined. This suggests that we should simplify the expression further.

We can factor out x from the numerator and denominator to get:

(5x²+8)/(3x²-16)

Now, plugging in x=0 gives us:

(5(0)²+8)/(3(0)²-16) = 8/-16 = -1/2

So, as x approaches 0, (5x⁴+8x²)/(3x⁴-16x²) approaches -1/2.

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Therefore, we can conclude that the state of Alabama sold 1,110,000 packs of playing cards, since the tax of 5 cents per pack generated a total revenue of $55500

Based on the given information, we can calculate the total number of packs of cards sold in the state of Alabama.

To find the number of packs of cards sold, we need to use the formula:

Revenue = Tax per pack x Number of packs sold

We are given that the tax per pack is 5 cents, and the revenue generated is $55500. So, we can rewrite the formula as:

$55500 = 0.05 x Number of packs sold

To solve for the number of packs sold, we can divide both sides of the equation by 0.05:

Number of packs sold = $55500 / 0.05
Number of packs sold = 1,110,000

Therefore, the state of Alabama sold 1,110,000 packs of playing cards, since the tax of 5 cents per pack generated a total revenue of $55500.


The given question asks us to find the number of packs of playing cards sold in the state of Alabama, assuming that the state placed a tax of 5 cents per pack and generated a revenue of $55500. To solve this problem, we need to use the formula that relates the tax per pack, the number of packs sold, and the revenue generated.

The formula for calculating the revenue generated from a tax on playing cards is:

Revenue = Tax per pack x Number of packs sold

In this case, we are given that the tax per pack is 5 cents, and the revenue generated is $55500. We need to find the number of packs sold.

To do this, we can rearrange the formula to solve for the number of packs sold:

Number of packs sold = Revenue / Tax per pack

Substituting the given values, we get:

Number of packs sold = $55500 / 0.05
Number of packs sold = 1,110,000

Therefore, we can conclude that the state of Alabama sold 1,110,000 packs of playing cards, since the tax of 5 cents per pack generated a total revenue of $55500. It is important to note that this calculation assumes that the tax rate and revenue are directly proportional to the number of packs sold, and that there are no other factors affecting the market for playing cards in Alabama.

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To calculate the standard deviation of the fares, we need to use the formula for the standard deviation of a linear transformation:

[tex]Standard Deviation (Fares) = $2.00 \times Standard Deviation (Distance) = $2.00 \times 2 = $4.00[/tex]

The shape of the distribution of the fares is not affected by the linear transformation.

The average and standard deviation of the fares for the month in dollars, The formula for the total fare for a given distance:

Fare = [tex]$2.50 + $2.00 \times distance[/tex]

Using the mean distance of 6.5 miles, we can calculate the average fare:

Average Fare

=[tex]$2.50 + $2.00 \times 6.5[/tex]

= [tex]$15.50[/tex]

The standard deviation of the fares for the month is $4.00.

The shape of the distribution of the fares is not affected by the linear transformation.

Since the original distribution of distances is approximately normal, the distribution of fares will also be approximately normal, with a mean of $15.50 and a standard deviation of $4.00.

The distances are independent and identically distributed, and that the taxi driver charged the same fare for each trip regardless of other factors such as traffic or time of day.

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If derivative of [tex]f(x)=ln(x+4+e^{(-3x)})[/tex], then f '(0) = -2/5.

What is derivative?

In calculus, the derivative of a function is a measure of how the function changes as its input changes. More specifically, the derivative of a function at a certain point is the instantaneous rate of change of the function at that point.

To find f'(0), we first need to find the derivative of f(x) with respect to x. Using the chain rule, we get:

[tex]f'(x) = 1 / (x+4+e^{(-3x)}) * (1 - 3e^{(-3x)})[/tex]

Now we can find f'(0) by substituting the value x=0:

[tex]f'(0) = 1 / (0+4+e^{(-3(0))}) * (1 - 3e^{(-3(0))})[/tex]

f'(0) = 1 / (4+1) * (1 - 3)

f'(0) = -2/5

Therefore, f'(0) = -2/5.

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The volume of this rectangular prism is equal to 114 3/4 cubic inches..

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism = L × W × H

Where:

By substituting the given dimensions (parameters) into the formula for the volume of a rectangular prism, we have the following;

Volume of rectangular prism = 8 1/2 × 3 ×  4 1/2

Volume of rectangular prism = 17/2 × 3 ×  9/2

Volume of rectangular prism = 114 3/4 cubic inches.

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