We want to know how a tudent’ level of education and their gender impact both their annual income and amount of tudent loan debt. However, we want to account for the annual income of the tudent’ parent a well. So which Statitical Tet are you going to ue?

A measure computed from the entire population is called a parameter.

The correct answer is an option (d)

We know that a parameter is nothing but a numerical value that describes a certain characteristic of the entire population. It is computed using the population values such as population mean, population variance, etc.

Whereas, a statistic is a numerical value that defines certain characteristic of a sample.

It is computed using the sample values such as the sample mean, sample variance, etc.

A qualitative value or a qualitative data are represented by a name, symbol, or a number code. This data is the data about categorical variables.

And the mean is nothing but the average of a set of values.

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If the diameter of the output cylinder of a simple hydraulic system were greater, this would increase the output force.

In a simple hydraulic system, a small force applied to a small piston (input cylinder) is amplified and transferred to a larger piston (output cylinder) through a fluid. The output force is equal to the input force multiplied by the ratio of the areas of the two pistons. The area of a cylinder is equal to the radius squared times pi. So, if the diameter of the output cylinder is increased, the area of the output cylinder will increase and the output force will be greater.

It's important to note that increasing the diameter of the output cylinder will also increase the volume of the output cylinder, so more fluid will be required to fill the cylinder and the system may need a larger fluid pump or reservoir.

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To write the equation of a line that is perpendicular to y = 2x - 5, we need to find the slope of the new line.

As we know, the slope of a line perpendicular to y = 2x - 5 is the negative reciprocal of the slope of y = 2x - 5, which is -1/(2) = -1/2.

To find the equation of the line in slope-intercept form (y = mx + b), we can use the point (2, -5) and the slope of -1/2.

We know that the point (2, -5) belongs to the line, so we can substitute these values into the equation:

y = -1/2x + b

-5 = -1/2(2) + b

-5 = -1 + b

b = -4

So, the equation of the line in slope-intercept form is:

y = -1/2x -4

This is the equation of a line that is perpendicular to y = 2x - 5 and passes through the point (2, -5)

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ChatGPT Jan 9 Version. Free Research Preview. Our goal is to ma

The powers that have same value as 1^8 are 1^n, n^0 where n=real number.

What are real numbers?

Real numbers are simply the combination of rational and irrational numbers, in the number system. In general, all the arithmetic operations can be performed on these numbers and they can be represented in the number line, also. At the same time, the imaginary numbers are the un-real numbers, which cannot be expressed in the number line and are commonly used to represent a complex number. Some of the examples of real numbers are 23, -12, 6.99, 5/2, π, and so on.

Now,

As we know anything raised to the power of 1 is always one and 0 raised to the power of anything is also one.

Hence, the powers that have same value as 1^8 are 1^n, n^0 where n=real number.

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The height of the given triangle is 4cm.

Let the base of the triangle be x cm.

It is given that the height of the triangle is 8cm shorter than the base.

∴ Height of the triangle = ( x-8 ) cm

Now,

       Formula for the area of a triangle = 1/2 × Base × Height  sq units.

       It is given that the area of the triangle is 24 cm^2.

       Area= 1/2* x(x-8) cm^2

     ⇒ 1/2 × x(x-8) = 24

    ⇒  x(x-8) = 48

    ⇒ [tex]x^{2}[/tex] - 8x -48=0

    ⇒ [tex]x^{2}[/tex] - 12x + 4x -48 = 0

    ⇒ x(x -12) +4(x-12) = 0

    ⇒ ( x-12 )( x + 4) =0

    ⇒ x= 12 , -4

Since, x is a length so it can not be negative value.

∴ x = 12 cm

Now, height = x-8= 4 cm

Therefore, The height of the given triangle is 4cm.

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Answer:

I think r^2= 4S/πh

Step-by-step explanation:

S=1/4πr^2h

Multiple 4 on both sides

4S=πr^2h

Divide π and h on both sides

r^2=4S/πh

Sorry if this wrong

Due to the fact that 8 over 14 is more than 11 over 21, Zachariah has a higher ratio of American stamps than Khai.

Due to the fact that 8 over 14 is more than 11 over 21, Zachariah has a higher ratio of American stamps than Khai.

An element of a number or any number of equal pieces is represented by a fraction.

Given that Khai and Zachariah are stamp collectors.

Zachariah also contains eight of the fourteen American stamps that are available.

Khai contains 11 American stamps out of a total of 21.

Khai equals 8/14 Zachariah equals 11/21

Zachariah has a higher proportion of American stamps than Khai does since 8 over 14 is more than 11 over 21.

After all, we would convert 11/21 and 8/14 into fractions.

Tell them that we would turn their fractional values into decimals and then into percentiles.

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The average of the increased set of numbers is 21

The average, also known as the arithmetic mean is found by adding together, the numbers in a set of numbers, and dividing the sum by the count of the numbers.

The average of the 5 numbers = 18

The amount by which the numbers are increased are as follows;

First number; Increased by one

Second number; Increased by two

Third number; Increased by three

Fourth number; Increased by four

Fifth number; Increased by five

Let a represent the first number, b the second number, c the third number, d, the fourth number, e, the fifth number, we get;

The increased numbers are; a + 1, b + 2, c + 3, d + 4, e + 5

The initial average can be presented as follows;

Initial average = [tex]\frac{a+b+c+d+e}{5} = 18[/tex]

The imncreased average becomes;

New average = [tex]\frac{(a+1)+(b+2)+(c+3)+(d+4)+(e+5)}{5} = \frac{a+b+c+d+e+15}{5}[/tex]

The new average = (a + b + c + d + e + 15)/5 = (a + b + c + d + e)/15 + 15/5

The term (a + b + c + d + e)/15 in the expression on the right for the new average is the initial average and is equivalent to 18, therefore;

(a + b + c + d + e)/15 = 18

The new average = (a + b + c + d + e)/15 + 15/5

(a + b + c + d + e)/15 + 15/5 = 18 + 15/5 = 18 + 3

The new average = 18 + 3 = 21

The average of the increased set of numbers (the new average) is 21

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The value of g in 27+g=44 is 17 and the value of g in 30+g=44 is 14.

Multiplication, division, addition, and subtraction. A mathematical equation's two sides will remain equal if we add the same integer to each of them.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the equal sign.

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

Equations come in two varieties: identities and conditional equations. All possible values of the variables result in an identity. Only certain combinations of the variables' values make a conditional equation true.

= 27 + g = 44

= 27 - 44 = g

g =  17

= 30 + g = 44

= 30 - 44 = g

g = 14

Therefore, the value of g in 27+g=44 is 17 and the value of g in 30+g=44 is 14.

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The relative frequency as a percentage is 25.7%.

The ratio (fraction or proportion) of the number of times a data value appears in the set of all outcomes to the total number of outcomes is known as the relative frequency. Divide each frequency by the overall sample size, in this example 20 students, to determine the relative frequencies.

The relative frequency of students who picked either butterflies or trains as their favorite exhibit is 18 (12 + 6) out of a total of 70 students.

The relative frequency as a percentage is 18/70 * 100 = 25.7%.

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Answer: 25

Step-by-step explanation: 10+10=20 and 2+3=5. 20+5=2

The required given expression is a equation x - 4.65 = 0.09.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. ​

In any expression variables and constants are expressed by equal sign,

Then the expression is called equaion.

So, as question says,

x - 4.65 = 0.09

x = 4.74

Thus, It is a equation of value 4.74.

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Answer:

a) The hypotenuse side is BC.

b) Using the Pythagorean Theorem, we can determine the missing side: AB = √(AC² - BC²) = √(6² - 4²) = √(36 - 16) = √20 = 4.47.

c) The perimeter of the triangle is AC + BC + AB = 6 + 4 + 4.47 = 14.47.

d) The area of the triangle is ½ × AC × AB = ½ × 6 × 4.47 = 13.7.

Step-by-step explanation:

The Pythagorean Theorem states that in a right triangle, the sum of the squares of the two shorter sides is equal to the square of the hypotenuse. So, for the triangle given, we can use this theorem to calculate the length of side AB, which is the missing side. Then, we can calculate the perimeter of the triangle by adding up all three sides and the area of the triangle by using the formula ½ × AC × AB.

The estimate of the total number of phones that needed repairing last year in Market City is given as follows:

Between 123,000 and 157,500.

The estimate is obtained applying the proportions in the context of this problem.

The confidence interval is given as follows:

1.05 ± 0.23.

Hence the bounds of the interval are given as follows:

Then the amounts out of 150,000 households are given as follows:

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The length of TU in a trapezoid RSUT is  34 units.

To find the length of TU, we can use the midpoint formula. The midpoint formula states that for a line segment with endpoints (x1, y1) and (x2, y2), the midpoint is ((x1 + x2)/2, (y1 + y2)/2).

In this case, we know that X is the midpoint of line segment RS and V is the midpoint of line segment SU. So we can set up the following equation:

(RS/2) + (SU/2) = 44

Where (RS/2) = (30/2) = 15 and (SU/2) = TU/2

So we can substitute this into the equation and get:

15 + (TU/2) = 44

To find TU, we can solve this equation by multiplying both sides by 2:

TU = 2(44) - 2(15) = 64 - 30 = 34

So the length of TU is 34 units.

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In a case whereby concrete beam is to rest on two concrete pillars. The beam is a cuboid with sides of length 0.5m, 3m and 0.4m with diameter 0.4m and height 2m. the total volume of concrete needed to make the beam and the pillars is 1.103m^3

The concept here is total volume , then we can calculate this for concrete needed to make the beam and the pillars  as:

Vtd = V1 + V2

= V1= lwh

where length  l = 0.5m,

width w=  3m

height h=  0.4m.

V1 + V2 = (0.5m* 3m * 0.4m) + 2(π/4 d^2. h)

where h =height 2m

Then  V1 + V2 = 1.1026m^3

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Check the picture below.

so from the picture below we can say that parallel sides or bases of the trapezoid are AB and DC, that means our midsegment is found halfway of BC and halfway of AD, let's get the midpoints for those and then get their length.

[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ A(\stackrel{x_1}{0}~,~\stackrel{y_1}{3})\qquad D(\stackrel{x_2}{2}~,~\stackrel{y_2}{0}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ 2 +0}{2}~~~ ,~~~ \cfrac{ 0 +3}{2} \right) \implies \left(\cfrac{ 2 }{2}~~~ ,~~~ \cfrac{ 3 }{2} \right)\implies (1~~,~~\frac{3}{2}) \\\\[-0.35em] ~\dotfill[/tex]

[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ B(\stackrel{x_1}{2}~,~\stackrel{y_1}{5})\qquad C(\stackrel{x_2}{6}~,~\stackrel{y_2}{4}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ 6 +2}{2}~~~ ,~~~ \cfrac{ 4 +5}{2} \right) \implies \left(\cfrac{ 8 }{2}~~~ ,~~~ \cfrac{ 9 }{2} \right)\implies (4~~,~~\frac{9}{2})[/tex]

let's get their distance

[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{1}~,~\stackrel{y_1}{\frac{3}{2}})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{\frac{9}{2}})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{(4-1)^2 + (\frac{9}{2}-\frac{3}{2})^2}\implies d=\sqrt{3^2 + 3^2}\implies {\Large \begin{array}{llll} \stackrel{midsegment}{ d=\sqrt{18}} \end{array}}[/tex]

The ordered pair (6, 4) is not a solution to the inequality

The graph is given below

Option A is the correct answer.

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal =

Greater than and equal=

We have,

Ordered pair = (6, 4)

This means,

(6, 4) = (x, y)

Now,

y < 3/4(x - 3)

Substitute (6, 4) = (x, y)

4 < 3/4(6 - 3)

4 < 3/4 x 3

4 < 4

This is not true.

From the graph,

(6, 4) is above the line.

Thus,

The graph is given below

(6, 4) is not a solution.

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Answer:

56

Step-by-step explanation:

10 times 4 is 40

4 times 4 is 16

40+16=56

If a plumber has a very long piece of pipe that is used to run city water parallel to a major roadway. The length of the  longer piece of the pipe is: 172 ft.

Let x represent the longer piece

Let  x - 12   represent the shorter piece

So,

(3)(x - 12)  = 120  

Multiply both sides by 4/3

x - 12  = 120 (4/3)

x - 12  = 160      

Add 12 to both sides

x = 172 ft (longer piece)

Therefore the length of the longer piece is 172 ft.

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The correct question is:

A plumber has a very long piece of pipe that is used to run city water parallel to a major roadway. The pipe is cut into two sections. One section of the pipe is 12 ft. shorter than the other. If 3/4 of the length of the shorter pipe is 120 ft., how long is the longer piece of the pipe?

Answer:

54

Step-by-step explanation:

This is legit just 8 x 7,

       0.0000732 = 7.32 x 10⁻⁵

     145,000 = 1.45 x 10⁵

Now, According to the question:

If the number is given in the decimal notation, move the decimal point to the right side of its original position and place the decimal point after the first non zero digits. The power ten will be the number of places the original decimal point was moved and it will be negative as it was moved towards the right side.

0.0000732 = 7.32 x 10⁻⁵

If the whole number greater than 10 is to be changed into the power of 10, then move the decimal point to the left side of its original position and place the decimal point after the first digit. The power of 10 will be the number of places the original decimal point was moved and it will be positive as it was moved towards the left side.

145,000 = 1.45 x 10⁵

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Answer:

80 pennies

160 nickels

Step-by-step explanation:

.01p + .05n = 8.80   multiply through by 100

p + 5n = 880

2p = n

substitute 2p for n is the bold equation

p + 5(2p) = 880  

p + 10p = 880

11p = 880   Divide both sides by 11

p = 80

2p = n

2(80) = n

160 = n

Check:

(.01)(80) + (.05)(160) = 8.80

0.80 + 8 = 8.80

8.80 = 8.80  Checks

For the sum of ages of Adam, Barry, and Charlie is 53 , Barry is 14 years old.

Number of brothers are three.

Adam, Barry and Charlie.

Let us consider 'x' years be the age of Barry.

Adam age is equal to (2x) years.

And Charlie age is equal to ( x - 3 )years.

Sum of their ages = 53

Substitute the value of Adam, Barry and Charlie age we get,

⇒ x + 2x + x - 3 = 53

⇒ 4x = 53 + 3

⇒ 4x = 56

⇒ x = 56 / 4

⇒ x = 14 years

Barry is  14 years old.

Adam = 2(14 )

          = 28 years

Charlie = 14 - 3

            = 11 years

Therefore, as per the information about the ages of Adam, Barry and Charlie , the Barry is 14 years old.

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The missing angle measures in triangle ABC are 35.5° and 54.5°.

We know that,

In the right triangle ABC

∠A +∠B =90°   ( by complementary angles)

We find the measure of angle B.

we know that

[tex]tanB = \frac{opposite side angle B}{adjacent side angle B}[/tex]

According to the question,

Opposite side angle B= 7 in

Adjacent side angle B = 5in

So, [tex]tanB = \frac{7}{5}[/tex]

      [tex]B = arc tan(\frac{7}{5})[/tex]

      B = 54.5°

Then, we find the measure of angle A

A + B = 90°

 A = 90°-B

A = 90° -  54.5° ( using subtraction)

A = 35.5°

So, The angles measured in triangle ABC are 35.5° and 54.5°.

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Answer:28

Step-by-step explanation:

5x5=25

25+3=28

Answer:

C. 28

Step-by-step explanation:

3 + 5^2

3 + 25 = 28