We have been given that the ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is 28.5 years, with a standard deviation of 3.5 years.

We can determine the interquartile range of each block by using the mean: (D) Block 1 IQR: 20; Block 2 IQR: 5

The mean, often known as the arithmetic mean, is a statistic that expresses the central tendency of a collection of numerical data.

It is calculated by summing up all of the dataset's values and dividing the result by the total number of values.

Since it gives a single value that summarises the entire dataset, the mean is frequently employed as a typical value for a dataset.

Outliers in the dataset, however, have the potential to have an impact.

We must first establish the quartiles in order to determine the interquartile range (IQR) for each block.

This can be accomplished by first determining the median (Q2) of each block, followed by the medians of the lower (Q1) and upper (Q3) halves of the data.

Block 1's:

Q1: median of {25, 60, 70, 75, 80} = 70

Q2: median of {85, 85, 90, 95, 100} = 90

Q3: median of {70, 75, 80, 85, 90} = 80

IQR = Q3 - Q1 = 80 - 70 = 10

Block 2's:

Q1: median of {70, 70, 75, 75, 75} = 75

Q2: median of {75, 75, 80, 80, 85} = 80

Q3: median of {80, 85, 100, 75, 75} = 82.5

Therefore, we can determine the interquartile range of each block by using the mean: (D) Block 1 IQR: 20; Block 2 IQR: 5

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Correct question:

Mr. Sofi drew a random sample of 10 grades from each of his Block 1 and Block 2 Algebra Unit 2 Test. The following scores were the ones he drew:

Block 1: 25, 60, 70, 75, 80, 85, 85, 90, 95, 100.

Block 2: 70, 70, 75, 75, 75, 75, 80, 80, 85, 100.

What is the interquartile range of each block?

Answer:

soln;Here

Given,

f(x)=2x² + 4x - 14

g(x)= x³ + 15x

(f + g)(3)= ?

Now,

(f + g)(3) = f(3) + g(3)

=2×3³- 14 + 3³ + 15 × 3

=2 × 27 - 14 + 27 + 45

= 54 - 14 + 27 + 45

= 54 - 14 + 7

=61 - 14

= 47..

Hence the value of f + g)(3)= 47

Answer:

Let's call the smaller number "x" and the larger number "y". We know that:

y - x = 47 (Equation 1)

And also, we know that:

2x = y + 22 (Equation 2)

We can solve this system of equations by substituting the expression for "y" from Equation 1 into Equation 2:

2x = (x + 47) + 22

Simplifying this equation, we get:

2x = x + 69

Subtracting "x" from both sides, we get:

x = 69

Now we can use Equation 1 to find the value of "y":

y - 69 = 47

y = 47 + 69

y = 116

Therefore, the two numbers are 69 and 116.

The numbers are 25 and 72.

Let the smaller number be x.

As the difference between smaller and larger number is 47, the larger number is 47 more than smaller.

∴ The larger number = x+47.

Now, according to question,

two times the smaller number is 22 more than the larger number.

two times the smaller number=2x

∴ Larger number=2x+22

⇒ 2x+22=x+47 (as the larger number is x+47)

⇒ 2x-x=47-22   ( transferring variables on LHS and constants on RHS)

⇒ x=25

∴ the smaller number is 25

and the larger number = x+47=25+47

                                       =72

Hence, the smaller number is 25 and the larger number is 72.

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Each function's rate of change across the interval [1, 4] is 3 for f(x) and 26 for g(x), respectively. As a result, g(x) is the function that is expanding more quickly.

To calculate the rate of change for each function over the interval [1, 4], we need to find the slope of the secant line between the points (1, f(1)) and (4, f(4)) for function f(x) and between the points (1, g(1)) and (4, g(4)) for function g(x).

For function f(x) = 3x + 1:

f(1) = 3(1) + 1 = 4

f(4) = 3(4) + 1 = 13

The slope of the secant line is:

(f(4) - f(1))/(4 - 1) = (13 - 4)/3 = 3

Therefore, the rate of change for f(x) over the interval [1, 4] is 3.

For function g(x) = 3^x + 1:

g(1) = 3^1 + 1 = 4

g(4) = 3^4 + 1 = 82

The slope of the secant line is:

(g(4) - g(1))/(4 - 1) = (82 - 4)/3 = 26

Therefore, the rate of change for g(x) over the interval [1, 4] is 26.

Comparing the rates of change, we see that the rate of change for f(x) is 3 and the rate of change for g(x) is 26. Therefore, the correct answer is (d) f(x) has a rate of change of 3 and g(x) has a rate of change of 26, so g(x) is growing faster.

The complete question is:-

Calculate the rate of change for each function over the interval [1, 4], then tell which function is growing faster.

f (x)=3x+1

g(x)=3^x+1

a) f(x) has a rate of change of 3

g(x) has a rate of change of 1

so f(x) is growing faster

(b) f(x) has a rate of change of 3

g(x) has a rate of change of 3

so they are growing at the same rate

(c) f(x) has a rate of change of 3

g(x) has a rate of change of 26

so f(x) is growing faster

d) f(x) has a rate of change of 3

g(x) has a rate of change of 26

so g(x) is growing faster

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The area of the shaded region, we need to subtract the area of the smaller circle from the larger circle. Let's call the radius of the larger circle "r" and the radius of the smaller circle "a".

the area of the shaded region is 3πa^2.

The area of a circle is given by the formula

[tex]A = πr^2.[/tex]

Therefore, the area of the larger circle is πr^2 and the area of the smaller circle is πa^2.
To find the area of the shaded region, we need to subtract the area of the smaller circle from the larger circle:
Shaded area = [tex]πr^2 - πa^2[/tex]
However, we're not done yet because we need to simplify this expression in terms of "a" and in simplified radical form. To do this, we can factor out π from both terms:

Shaded area = π(r^2 - a^2)
We can simplify this expression further by noticing that [tex]r^2 - a^2 [/tex]is actually the difference of two squares, which can be factored as:
[tex]r^2 - a^2 = (r + a)(r - a)[/tex]
Therefore, the area of the shaded region is:
Shaded area = [tex]π(r + a)(r - a)[/tex]
And since we were asked to leave our answer in terms of "a" and in simplified radical form, we can substitute r = 2a (since the diameter of the larger circle is twice the radius of the smaller circle) and simplify:
Shaded area =[tex] π(2a + a)(2a - a) = π(3a)(a) = 3πa^2[/tex]

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Step-by-step explanation:

The vertical line exactly between them     x = -1   is the axis of rotation

The two equations that are true for the value x = -2 and x = 2 are x² - 4 = 0 and 4x² = 16.

For x = -2, substituting into equation 1 gives:

(-2)² - 4 = 0

4 - 4 = 0

Adding x = -2 to equation 2 results in:

4(-2)² = 16

4(4) = 16

For x = 2, substituting into equation 1 gives:

(2)² - 4 = 0

4 - 4 = 0

Adding x = -2 to equation 2 results in:

4(2)² = 16

4(4) = 16

Therefore, the equations is true.

The equation 3x² + 12 = 0 is not true for either x = -2 or x = 2 since substituting either value into the equation yields a non-zero result.

The equation 2(x - 2)² = 0 is only true for x = 2, but not for x = -2, since substituting x = -2 yields a non-zero result.

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The radio station gave away 43 tickets to employees, and they gave away 3 times as many tickets (3x) to listeners, which is 3 * 43 = 129 tickets. We can calculate it in the following manner.

Let's assume that the radio station gave away "x" tickets to employees.

According to the problem, they gave away three times as many tickets to listeners as to employees. So the number of tickets given to listeners would be 3x.

We know that the total number of tickets given away is 172. Therefore, we can set up an equation based on this:

x + 3x = 172

Simplifying and solving for x, we get:

4x = 172

x = 43

Therefore, the radio station gave away 43 tickets to employees, and they gave away 3 times as many tickets (3x) to listeners, which is 3 * 43 = 129 tickets.

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The slope of the line passing through A(0,-5) and B(3,1) is 2.

what is slope?

In mathematics, slope is a measure of how steep a line is. It is the ratio of the change in the y-coordinates to the change in the x-coordinates between two points on the line.

The slope formula is given by:

slope = (change in y)/(change in x)

The change in y is the difference between the y-coordinates of two points on the line, while the change in x is the difference between the x-coordinates of the same two points. The slope is a single number that represents the degree of steepness of the line.

To find the slope of the line passing through two given points A(0,-5) and B(3,1), we can use the slope formula:

slope = (change in y)/(change in x)

We first need to find the change in y and the change in x between the two points:

change in y = y-coordinate of B - y-coordinate of A

= 1 - (-5)

= 6

change in x = x-coordinate of B - x-coordinate of A

= 3 - 0

= 3

Now, we can substitute these values into the slope formula:

slope = (change in y)/(change in x)

= 6/3

= 2

Therefore, the slope of the line passing through A(0,-5) and B(3,1) is 2.

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After answering the presented question, we can conclude that probability Therefore, the probability of 30 or more seconds between vehicle arrivals is approximately 0.0498.

Probability is a measure of how likely an event is to occur. It is represented by a number between 0 and 1, with 0 representing a rare event and 1 representing an inescapable event. Switching a fair coin and coin flips has a chance of 0.5 or 50% because there are two equally likely outcomes. (Heads or tails). Probabilistic theory is an area of mathematics that studies random events rather than their attributes. It is applied in many fields, including statistics, economics, science, and engineering.

Sketch of exponential probability distribution with mean of 12 seconds:

   |                            

   |                            

   |              .            

   |             . .            

   |             . .            

   |             . .            

   |             . . .          

   |             . . .          

   |             . . .          

   |             . . .          

   |             . . .          

   |             . . . .        

   |             . . . .        

   |             . . . .        

   |             . . . . .      

   |             . . . . .      

   |_____________. . . . . . .

        0       12             X

The X-axis represents the time between vehicle arrivals, and the Y-axis represents the probability density. The peak of the distribution is at 12 seconds, which is the mean.

b. Probability of the arrival time between vehicles being 12 seconds or less:

Since the mean of the exponential distribution is 12 seconds, we can use the cumulative distribution function (CDF) to find the probability of the arrival time being 12 seconds or less:

[tex]P(X < = 12) = 1 - e^(-12/12) = 1 - e^(-1) ≈ 0.6321[/tex]

Therefore, the probability of the arrival time between vehicles being 12 seconds or less is approximately 0.6321.

c. Probability of the arrival time between vehicles being 6 seconds or less:

[tex]P(X < = 6) = 1 - e^(-6/12) = 1 - e^(-0.5) ≈ 0.3935[/tex]

Therefore, the probability of the arrival time between vehicles being 6 seconds or less is approximately 0.3935.

d. Probability of 30 or more seconds between vehicle arrivals:

[tex]P(X > = 30) = e^(-30/12) ≈ 0.0498[/tex]

Therefore, the probability of 30 or more seconds between vehicle arrivals is approximately 0.0498.

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The process of solve of the quadratic equation is not correct. As the product of x and (2x+5) is equal to 12. Thus the value of x or 2x+5 never equals to 12. The solutions of the quadratic equation are 4, -3/2

What is an equation?

A mathematical equation is a formula that uses the equals sign to express the equality of two expressions.

The given quadratic equation is

2x² + 5x = 12

2(x² + (5/2)x) = 12

Divide both sides by 2:

x² + (5/2)x = 6

x² + 2 ×(5/4)x +  (5/4)² = 6 +  (5/4)²

(x + (5/4))² = 6 +  (25/16)

(x + (5/4))² = 121/16

x + (5/4)  = ± 11/4

x = 5/4 + 11/4 , 5/4 - 11/4

x = 4, -3/2

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The slope of a line passing through two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by:

slope

=

�

2

−

�

1

�

2

−

�

1

slope=

x

2

​

−x

1

​

y

2

​

−y

1

​

​

Using the coordinates given, we have:

slope

=

9

−

3

5

−

(

−

3

)

=

6

8

=

3

4

slope=

5−(−3)

9−3

​

=

8

6

​

=

4

3

​

Therefore, the slope of the line passing through the points $(-3,3)$ and $(5,9)$ is $\frac{3}{4}$.

the temperature at 9 P.M. is 38 degrees Fahrenheit, and the equation that represents this temperature is T(9) = 53 - 3(9-4).

How to determine the temperature ?

To determine the temperature at 9 P.M., we need to calculate how much the temperature drops from 4 P.M. to 9 P.M. We know that the temperature drops 3 degrees per hour, and since there are 5 hours between 4 P.M. and 9 P.M., the temperature will have dropped 3 x 5 = 15 degrees.

Therefore, to calculate the temperature at 9 P.M., we need to subtract 15 degrees from the temperature at 4 P.M.:

Temperature at 9 P.M. = Temperature at 4 P.M. - 15

Substituting the given temperature of 53 degrees Fahrenheit at 4 P.M.:

Temperature at 9 P.M. = 53 - 15 = 38 degrees Fahrenheit

Thus, the equation that accurately represents the temperature at 9 P.M. is:

T(9) = 53 - 3(9-4)

Simplifying the equation:

T(9) = 53 - 15

T(9) = 38

In conclusion, the temperature at 9 P.M. is 38 degrees Fahrenheit, and the equation that represents this temperature is T(9) = 53 - 3(9-4).

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Answer: [tex]\frac{\sqrt{6}+\sqrt{2} }{4}[/tex]

Step-by-step explanation:

Half angle formula for sine is  

sin([tex]\frac{x}{2}[/tex])=[tex]\sqrt{1-cosx}/2[/tex]

If x is 150, then sin 75=[tex]\sqrt{1-cos150}/2[/tex] =[tex]\sqrt{1-\frac{cos(180-30)}{2} }[/tex]=[tex]\sqrt{1+cos30}/2[/tex]

=[tex]\sqrt{(1/2)+(\sqrt{3}/4)}[/tex] =[tex]\frac{\sqrt{6}+\sqrt{2} }{4}[/tex]

Therefore, for every passing hour, the amount of drug in the body is multiplied by approximately 0.7937 or 79.37% based on factor.

The half-life of a drug refers to the amount of time it takes for the concentration of the drug in the body to decrease by half. In this case, with a half-life of 3 hours, we can assume that the concentration of the drug in the body decreases by 50% every 3 hours.

To determine the factor by which the amount of drug in the body is multiplied for each passing hour, we can use the formula:

[tex]b = 0.5^(1/t)[/tex]

where b: factor by which the amount of drug in the body is multiplied for each passing hour, and t: half-life of the drug in hours. Substitute t = 3 hours into formula gives:

[tex]b = 0.5^(1/3) = 0.7937[/tex]

Therefore, for every passing hour, the amount of drug in the body is multiplied by approximately 0.7937 or 79.37%. This means that after one hour, the amount of drug in the body is reduced to 79.37% of its original amount, after two hours it is reduced to 62.86% (0.7937^2), after three hours it is reduced to 50%, and so on.

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Answer:

Step-by-step explanation:

To rewrite the fractions 2/5 and 4/15 with a least common denominator, we need to find the least common multiple (LCM) of their denominators, which is 15.

For 2/5, we can multiply the numerator and denominator by 3 to get:

2/5 = (2 x 3)/(5 x 3) = 6/15

For 4/15, we don't need to do anything since its denominator is already 15.

Therefore, the equivalent fractions with a least common denominator are:

2/5 = 6/15

4/15 = 4/15

Answer: 2/5 and 133/100/15

Step-by-step explanation:

The probability that the 4th or 5th student you stop is the first to have the jumper cables is 0.2417 or about 24.17%.

This is an example of a negative binomial probability problem, where we want to know the probability of obtaining a certain number of failures before obtaining a certain number of successes in a series of independent trials. In this case, the "success" is finding a student with jumper cables, and the "failure" is finding a student without jumper cables.

Let p be the probability of success (finding a student with jumper cables) on any given trial, which is 0.18 according to the problem. Let k be the number of successes we want to obtain, which is 1 in this case (since we only need to find one student with jumper cables). Let x be the number of trials it takes to obtain k successes, which is either 4 or 5 in this case.

Then, the probability of finding the first student with jumper cables on the 4th or 5th stop is:

P(X = 4 or X = 5) = P(X = 4) + P(X = 5)

We can calculate these probabilities using the negative binomial distribution formula:

[tex]P(X = x) = (x-1) choose (k-1) * p^k * (1-p)^{x-k}[/tex]

For x = 4:

[tex]P(X = 4) = (4-1) choose (1-1) * 0.18^1 * (1-0.18)^{4-1} = 0.1778[/tex]

For x = 5:

[tex]P(X = 5) = (5-1) choose (1-1) * 0.18^1 *(1-0.18)^{5-1} = 0.0639[/tex]

So, the probability of finding the first student with jumper cables on the 4th or 5th stop is:

P(X = 4 or X = 5) = 0.1778 + 0.0639 = 0.2417

Therefore, the probability that the 4th or 5th student you stop is the first to have the jumper cables is 0.2417 or about 24.17%.

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Answer:

the slope of this line is 2/2

Step-by-step explanation:

because the formula for slope is y=mx+b

m= slope of a line

+b= y-intercept.

slope= change in y/change in x

the equation is y=1x+2

i hope this helps :)

the population of Bolivia in 2030, if it continues to grow at a rate of 1.6% continuously, will be approximately 14.45 million.

To solve this problem, we need to use the formula for continuous compounding, which is:

[tex]A = Pe^(rt)[/tex]

Where:

A = the final amount

P = the initial amount

r = the annual growth rate (as a decimal)

t = the number of years

We know that Bolivia had a population of 10.5 million in 2010 and a growth rate of 1.6%, or 0.016 as a decimal. We want to find the population in 2030, which is 20 years after 2010.

So, we plug in the values into the formula:

[tex]A = 10.5 million * e^(0.016 * 20)[/tex]

Using a calculator, we get:

[tex]A = 10.5 million * e^(0.32)[/tex]

A = 10.5 million * 1.3775

A = 14.45 million

Therefore, the population of Bolivia in 2030, if it continues to grow at a rate of 1.6% continuously, will be approximately 14.45 million.

Continuous compounding is a mathematical concept used to calculate the growth of a quantity that grows at a constant rate over time. It is different from simple interest, which is calculated based on a fixed rate over a certain period of time. In continuous compounding, the growth rate is applied infinitely many times over an infinite time period, resulting in exponential growth. The formula we used is a standard formula for continuous compounding, and it can be used to calculate the growth of various quantities, such as population, money, or investments.

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Random codes reduce biases and increase security, but may be hard to use and result in inefficient coding. Systematic codes are easier to organize and use, but may be more predictable and less secure. The choice depends on needs and trade-offs between security, efficiency, and ease of use.

Assigning codes randomly:

Pros:

Reduces the likelihood of biases or patterns in the code assignment

Difficult to guess or predict the code for a given letter, increasing security

Cons:

May not be intuitive or easy to remember for users

Difficult to organize or sort codes in a meaningful way

May result in inefficient coding with long or repetitive codes

Assigning codes systematically:

Pros:

Easier to organize and sort codes alphabetically or by other criteria

Can be more intuitive and easy to remember for users

Can result in shorter or more efficient codes

Cons:

May be more susceptible to patterns or biases in the code assignment

May be easier to guess or predict the code for a given letter, reducing security

Ultimately, the choice of whether to assign codes randomly or systematically depends on the specific needs and goals of the coding system, as well as the trade-offs between security, efficiency, and ease of use.

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the tire rod of the smaller train would be 3.6 inches long if the scale factor is 10.

What is the constant of proportionality?

The constant of proportionality is a term that is defined as the rate or the ratio of two proportional values which are known to be at the same value.

we can set up the following proportion:

(Larger train tire rod length) / (Larger train length) = (Smaller train tire rod length) / (Smaller train length)

Substituting the given values, we have:

36 / (Larger train length) = x / (Smaller train length)

Since we don't know the exact lengths of the larger and smaller trains, we cannot solve for x directly. However, we can use the fact that the smaller train is a scale drawing of the larger train to set up another proportion:

(Larger train length) / (Smaller train length) = (Scale factor)

Let the scale factor be s. Then we can rewrite the above proportion as:

(Larger train length) = s x (Smaller train length)

Substituting this expression into the first proportion, we have:

36 / (s x Smaller train length) = x / (Smaller train length)

Simplifying, we get:

x = 36 / s

x = 36 / 10 = 3.6 inches

In other words, the tire rod of the smaller train would be 3.6 inches long if the scale factor is 10.

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Step-by-step explanation:

Looks like 24.634

After answering the presented question, we can conclude that This equation also has solutions x = -5 and x = -1: |x + 5| - |x + 1| = 4

An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x Plus 3" equals the value "9." The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. The variable x is raised to the second power in the equation "x2 + 2x - 3 = 0." Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.

[tex]|x + 3| - 2 = 0\\|x + 3| = 2\\x + 3 = 2 or x + 3 = -2\\x = -5 or x = -1\\|x + 2| + 4 = 1\\|x + 2| = -3\\|x + 5| - |x + 1| = 4\\[/tex]

This equation also has solutions x = -5 and x = -1:

|x + 5| - |x + 1| = 4

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For the given figure the absolute value equation | [tex]x+3[/tex] | = [tex]2[/tex] has the solution set x={[tex]-5,-1[/tex]}.

An absolute value equation is an equation that involves an absolute value expression. An absolute value expression is denoted by enclosing the expression inside vertical bars, like this: |expression|. The absolute value of a real number x is defined as:

|x| = x if x is non-negative (i.e.,[tex]x\geq 0[/tex])

|x| = -x if x is negative (i.e., [tex]x < 0[/tex])

A quadratic equation is a second-degree polynomial equation of the form:

[tex]ax^{2} +bx +c = 0[/tex]

where a, b, and c are constants, and x is the variable. The highest power of the variable x is[tex]2[/tex], which means that the equation represents a curve called a parabola. The constant a is called the leading coefficient and determines the shape and direction of the parabola.

According to the given information

An absolute value equation with solution set x={[tex]-5,-1[/tex]} can be written as:

| [tex]x+3[/tex] | = [tex]2[/tex]

To see why this equation has the given solution set, we can substitute [tex]-5[/tex] and [tex]-1[/tex] for x and check that they satisfy the equation:

| [tex]-5+3[/tex] | = [tex]2[/tex], which is true since |[tex]-2[/tex]| = [tex]2[/tex]

| [tex]-1+3[/tex] | = [tex]2[/tex] which is also true since |[tex]2[/tex]| = [tex]2[/tex]

Therefore, the absolute value equation | [tex]x+3[/tex] | = [tex]2[/tex] has the solution set x={[tex]-5,-1[/tex]}.

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Answer:

46.8 cm²

Step-by-step explanation:

The diagonal of the square has length [tex]\sqrt{6^2+10^2}=2\sqrt{34}[/tex]. Therefore, the radius of the circle is [tex]\sqrt{34}[/tex], meaning the area is [tex]\pi(\sqrt{34})^2 \approx 34(3.14)=106.76[/tex].

The area of the rectangle is [tex](6)(10)=60[/tex] cm².

Subtracting the areas, the answer is 46.76 cm², which is 46.8 cm² to the nearest tenth.

So, Tom would have earned *Ksh (137465.91 + x) and John would have earned Ksh (202533.09 - x)

What exactly is markup?

The sum that is added to a product's cost price to cover expenses and profit is known as a markup.

We are aware that John banks 100,000 and Tom 230,000 Kenyan shillings.

Assume that both product A and B have a cost price of x.

Tom spends 5x because he BUYS 5 of Product A.

Tom sells two times as much of B. He SELLS 2 * (2x) = 4x as a result.

Hence, Tom's gain is:

4x - 5x = -x

Tom suffers a loss of x as a result of this.

John sells product A for three times what Tom BOUGHT. Thus he SELLS 3 * 5 = 15 times.

John purchases 13 of B Product. He therefore spends 13 times.

John thus makes a profit of:

15x - 13x = 2x

John thereby benefits by a factor of two.  

As a result, the cost of goods A and B is:

42,727.27 + (25/100) * 42,727.27 = Ksh 53,409.09

44,363.63 + (25/100) * 44,363.63 = Ksh 55,454.54

We also know that the sale price was discounted by 15%.

After discounts, the sale price for item

A is (85/100) * Ksh 53,409.09, which is Ksh 45,397.73.

After discounts, the sale price for item

B is (85/100) * Ksh 55,454.54 = Ksh 47,136.36.

Tom's product loss

Ksh 45,397.73 - x = cost price - selling price

John's profit on item A is calculated as follows:

sale price less cost price = Ksh 45,397.73 - x

Cost price minus sale price equals Tom's loss on item B, which is Ksh 47,136.36.

John's profit on item B is calculated as follows: sale price less cost price = Ksh 47,136.36 - x

Therefore:

Total loss for Tom is (x - Ksh 45,397.73) + (x - Ksh 47,136.36)

= 2x - Ksh (45,397.73 + 47,136.36)

= = 2x - Ksh (92,534.09) (92,534.09)

(Ksh 45,397.73 - x) + John's total profit (Ksh 47,136.36 - x)

= Ksh (92,533.09) -2x

After discount and markup, Tom's bank balance equals Tom's bank balance plus his overall loss.

= [2x - Ksh (92,534.09)] + Ksh (230000)

= Ksh (137465.91 + x)

After discount and markup, John's bank balance equals John's bank balance plus his overall profit.

= [Ksh (92,533.09) -2x) + Ksh (110000)]

= Ksh (202533.09 - x)

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Answer:

The overall gain is $604.30.

Step-by-step explanation:

A summary of two stocks is shown.

52W high 52W low Name of Stock Symbol High Low Close

37.18 29.39 Zycodec ZYO 39.06 32.73 34.95

11.76 7.89 Unix Co UNX 16.12 12.11 15.78

Last year, a stockholder purchased 40 shares of Zycodec at its lowest price of the year and purchased 95 shares of Unix at its highest price of the year. If the stockholder sold all shares of both stocks at their respective closing price, what was the overall gain or loss?

The overall loss is $604.30.

The overall gain is $604.30.

The overall loss is $660.35.

The overall gain is $660.35.

Got It Right.

Answer: Don't use the other message below it's AI generated..

Step-by-step explanation:

The probability that a randomly chosen applicant has a graduate degree, given that they have over 5 years of experience, is 53/115, or approximately 0.4609 when rounded to four decimal places.

What is probability?

We can use conditional probability to find the probability that a randomly chosen applicant has a graduate degree, given that they have over 5 years of experience:

P(Graduate degree | Over 5 years of experience) = P(Graduate degree and Over 5 years of experience) / P(Over 5 years of experience)

We are given that 53 applicants have both a graduate degree and over 5 years of experience, so:

P(Graduate degree and Over 5 years of experience) = 53/491

We are also given that 115 applicants have over 5 years of experience, so:

P(Over 5 years of experience) = 115/491

Now we can substitute these values into the formula:

P(Graduate degree | Over 5 years of experience) = (53/491) / (115/491)

Simplifying, we get:

P(Graduate degree | Over 5 years of experience) = 53/115

So the probability that a randomly chosen applicant has a graduate degree, given that they have over 5 years of experience, is 53/115, or approximately 0.4609 when rounded to four decimal places.

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Answer:

To add mixed numbers, we first need to convert them to improper fractions. 5 2/3 = (5 x 3 + 2)/3 = 17/3 6 21/23 = (6 x 23 + 21)/23 = 139/23 Now we add the fractions together: 17/3 + 29/69 + 139/23 To add these fractions, we need to find a common denominator. The smallest common denominator for 3, 69, and 23 is 3 x 69 x 23 = 15087. So we rewrite each fraction with the common denominator: 17/3 x 5039/5039 = 85763/15087 29/69 x 219/219 = 633/15087 139/23 x 657/657 = 9123/15087

Therefore, we can say that there is a 95% chance that a randomly selected light bulb will last between 675 and 900 hours.

Probability is a measure of the likelihood of an event occurring. It is a mathematical concept that is used to quantify the chance of a specific outcome in a given situation. Probability is typically expressed as a number between 0 and 1, with 0 indicating that the event is impossible and 1 indicating that the event is certain to occur.

Here,

To solve this problem, we can use the z-score formula:

z = (x - mu) / sigma

where x is the value we want to find the probability for (in this case, between 675 and 900 hours), mu is the mean (750 hours), and sigma is the standard deviation (75 hours). We can then use a standard normal distribution table or calculator to find the probabilities associated with the calculated z-scores.

First, let's find the z-score for x = 675:

z = (675 - 750) / 75

= -1

Next, let's find the z-score for x = 900:

z = (900 - 750) / 75

2

Since the data is normally distributed, we can use this rule to estimate the probability that a randomly selected light bulb will last between 675 and 900 hours.

Thus, the probability that a randomly selected light bulb will last between 675 and 900 hours is approximately:

P = 95%

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The definite integrals associated with the piecewise function have the following values:

Case 1: 1.5

Case 2: - 2 + 0.5π

Case 3: 5.5

In this problem we find the representation of a piecewise function formed by four parts, whose definite integrals must be determined by means of the following formulas:

[tex]I = \int\limits^b_a {f(x)} \, dx[/tex]

Graphically speaking, the definite integral is equal to the area below the curve.

Case 1

I = 0.5 · 2² - 0.5 · 1²

I = 1.5

Case 2

I = - 2 · 1 + 0.5π · 1²

I = - 2 + 0.5π

Case 3

I = - 0.5 · 0.5 · 1 + 0.5 · 1.5 · 3 + 1 · 3

I = - 0.25 + 2.75 + 3

I = 5.5

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