The mean of the values in a data set is b. If each of the values in the data set
were multiplied by 8, what would be the mean of the resulting data?
A. 9b
B. 7b
C. b
D. 8b

Answer:

378.3 [tex]cm^{2}[/tex]

Step-by-step explanation:

a =[tex]\pi[/tex][tex]r^{2}[/tex] for a whole circle, but we only want the area for part of a circle

a = [tex]\frac{150}{360}[/tex] [tex]\pi[/tex][tex]17^{2}[/tex]

a = 378.3 [tex]cm^{2}[/tex] rounded to the nearest tenths place

The relationship between the input and output variables in the given table of values are;

Question 1

Yes, it is proportional, because the ratio of Dollar per hour are all equivalent to 12 dollar per hour

Question 2;

x; 1, 2, 3, 4, 5

y; 140, 280, 420, 560

Question 3

No it is not proportional because the ratio between the number of cookies, and the cups of flour are not equivalent

Question 4

No, it is not proportional because 18.26/36.5 ≠ 21.1/63.3

Question 5

Yes, it is a proportional relationship because it is a line that intersects with the origin

Question 6

The number of calories burned is dependent on the number of hours worked out. For a one–hour work out, 190 calories are burned, and for a two–hours work out, there are 380 calories burned

Question 7

Yes because the ratio of the miles per hour are all equivalent to 1.75

A proportional relationship is one in which the input and output have a constant ratio, and in which the graph passes through the origin.

Question 1

A proportional relationship is one that has the x and y –intercept as the origin, (0, 0) and in which the ratio of the values at each point, y/x is a constant

Given (0, 0) is a data point and 72/6 = 144/12 = 216/18 = 12

Therefore; Yes it is proportional because the ratio for Dollar per hour are all equivalent to 12 dollar per hour

Question 2;

The points on the graph are;

(0, 0), (5, 700), (6, 840), (7, 980)

Therefore;

y = (5/700)•x = (1/140)•x

The table is therefore;

x; 1, 2, 3, 4

y; 140 280 420 560

Question 3;

The ratio of the dozens of cookies to cups of flour, gives;

Recipe 1; R = 2/1.5 dozen per cup of flour

Which gives;

Approximately 1.33 dozens per cup of flour

Recipe 2, R = 3/3 dozens per cup of flour

Which gives;

Recipe 3, R = 4/4.5 dozens per cup of flour

Therefore;

No it is not proportional because the ratios between the number of cookies and the cups of flour are not all equivalent

Question 4

The ratio of the terms are;

18.26/36.5 = 11.6/23.2 = 1/2 ≠ 21.1/63.3 = 1/3

Therefore;

No it is not proportional because 18.26/36.5 is not equal 21.1/63.3

Question 5

Given that the graph is a straight line that passes through the origin, it is a proportional relationship with which gives;

Yes, it is a proportional relationship because, it is a line that intersects with the origin

Question 6

The number of calories burned is dependent on the number of hours worked out. For a one–hour work out 190 calories are burnt, and for a two–hours work out there are 380 calories burned

Question 7

The relationship is proportional, given that 3.5/2 = 8.75/5 = 12 .25/7 = 1.75

Therefore; Yes, because the ratios for miles per hour, are all equivalent to 1.75

Learn more about proportional relationships here:

https://brainly.com/question/28777033

#SPJ1

Answer:

The relationship between the input and output variables in the given table of values are;

Question 1

Yes, it is proportional, because the ratio of Dollar per hour are all equivalent to 12 dollar per hour

Question 2;

x; 1, 2, 3, 4, 5

y; 140, 280, 420, 560

Question 3

No it is not proportional because the ratio between the number of cookies, and the cups of flour are not equivalent

Question 4

No, it is not proportional because 18.26/36.5 ≠ 21.1/63.3

Question 5

Yes, it is a proportional relationship because it is a line that intersects with the origin

Question 6

The number of calories burned is dependent on the number of hours worked out. For a one–hour work out, 190 calories are burned, and for a two–hours work out, there are 380 calories burned

Question 7

Yes because the ratio of the miles per hour are all equivalent to 1.75

What is a proportional relationship?

A proportional relationship is one in which the input and output have a constant ratio, and in which the graph passes through the origin.

Question 1

A proportional relationship is one that has the x and y –intercept as the origin, (0, 0) and in which the ratio of the values at each point, y/x is a constant

Given (0, 0) is a data point and 72/6 = 144/12 = 216/18 = 12

Therefore; Yes it is proportional because the ratio for Dollar per hour are all equivalent to 12 dollar per hour

Question 2;

The points on the graph are;

(0, 0), (5, 700), (6, 840), (7, 980)

Therefore;

y = (5/700)•x = (1/140)•x

The table is therefore;

x; 1, 2, 3, 4

y; 140 280 420 560

Question 3;

The ratio of the dozens of cookies to cups of flour, gives;

Recipe 1; R = 2/1.5 dozen per cup of flour

Which gives;

Approximately 1.33 dozens per cup of flour

Recipe 2, R = 3/3 dozens per cup of flour

Which gives;

Recipe 3, R = 4/4.5 dozens per cup of flour

Therefore;

No it is not proportional because the ratios between the number of cookies and the cups of flour are not all equivalent

Question 4

The ratio of the terms are;

18.26/36.5 = 11.6/23.2 = 1/2 ≠ 21.1/63.3 = 1/3

Therefore;

No it is not proportional because 18.26/36.5 is not equal 21.1/63.3

Question 5

Given that the graph is a straight line that passes through the origin, it is a proportional relationship with which gives;

Yes, it is a proportional relationship because, it is a line that intersects with the origin

Question 6

The number of calories burned is dependent on the number of hours worked out. For a one–hour work out 190 calories are burnt, and for a two–hours work out there are 380 calories burned

Question 7

The relationship is proportional, given that 3.5/2 = 8.75/5 = 12 .25/7 = 1.75

Therefore; Yes, because the ratios for miles per hour, are all equivalent to 1.75

Step-by-step explanation:

Answer: A. 1.152 pounds.

Step-by-step explanation:

Add vertically

 0.320

+0.832

[tex]2+0=2[/tex]

 0.320

+0.832

         2

[tex]2+3=5[/tex]

 0.320

+0.832

      52

Since [tex]3+8=11[/tex] , the one Carries Over to the ones place.

 1

 0.320

+0.832

    .152

[tex]1+0+0=1[/tex]

 1

 0.320

+0.832

  1.152

Therefore, 1.152 pounds is the correct answer.

Sears offers them an installment loan at 15% (add-on rate) and if at Sears costs $1,500 plus 5% sales tax, and Karen and Wayne plan to pay for the refrigerator for 2 years, the monthly payment will be $75.47     using the interest and percentage formulas.

As per the question statement, Karen and Wayne need to buy a refrigerator because theirs just broke but their savings account is depleted and they will need to borrow money in order to buy a new one. The Sears offers them an installment loan at 15% ( add-on-rate), If the refrigerator at Sears costs $1,500 plus 5% sales tax, and Karen and Wayne plan to pay for the refrigerator for 2 years. We are supposed to find the monthly payment made by them using the interest formula and percentage formula.

5% of $1500 = $75

Total amount borrowed is 1500 + 75 = $1575.00

Sears charges 15% to borrow the money

15% of 1575 = $236.25

total amount is 1575 + 236.25 = $1811.25

There are 24 months present in 2 years so,

The monthly payment = 1811.25 / 24 = $75.47

To learn more about the concept and such questions, click on the link given below:

https://brainly.com/question/16797504

#SPJ1

Answer:

In point-slope form: y + 4 = -2(x + 1)

In slope-intercept form: y = -2x - 6

In standard form: 2x + y = -6

Step-by-step explanation:

y + 4 = -2(x + 1)

y + 4 = -2x - 2

y = -2x -6

2x + y = -6

Dean's bike moved a total distance of 93.7 kilometers on Thursday and Friday

From the question, we have the following parameters:

Thursday = 88 kilometers

Friday = 5.7 kilometers

The total distance moved by Dean bike altogether on Thursday and Friday is the sum of the distance moved on Thursday and on Friday

Substitute the known values in the above equation

So, we have

Total distance = Distance moved on Thursday + Distance moved on Friday

Substitute the known values in the above equation

So, we have

Total distance = 88 kilometers + 5.7 kilometers

Evaluate the sum

So, we have

Total distance = 93.7 kilometers

Hence, the total distance moved by the bike is 93.7 kilometers

Read more about distance at

https://brainly.com/question/14335655

#SPJ1

f(2) = 3

f⁻¹(2) = 1

f⁻¹(0) = -1

(f⁻¹o f)(1) = 1

The graph of f(x) is given. Here, f(x) = y and f⁻¹(y) = x.

That is, f(x) are y values corresponding to the given x-values and f⁻¹(y) is the x-value corresponding to the given y-value.

From the graph, f(2) is the y value when x = 2.

So, f(2) = 3

Now f⁻¹(2) is the x-value when y = 2.

So, f⁻¹(2) = 1

Also f⁻¹(0) =-1

Since f(1) = 2,

(f⁻¹o f)(1) = f⁻¹(f(1)) = f⁻¹(2) = 1

Learn more about function values at https://brainly.com/question/17089414

#SPJ9

Betty spent $90 and Nan spent $ 30

Mathematical expressions can be used to depict situations or issues, and algebra is the field of mathematics that does this. For a mathematical expression to have meaning, it needs to include variables like x, y, and z as well as mathematical operations like addition, subtraction, multiplication, and division. Algebra is used in every area of mathematics, including coordinate geometry, calculus, and trigonometry. A straightforward algebraic expression is 2x + 4 = 8.

Given that :While shopping, Betty spent three times as much as Nan. And they spent a total of $120,

Let the Betty spent total $x and Nan spent total $Y

then,

x = 3y ....(i)

x +y =120 .....(ii)

put value of c from i equation to equation ii

4y = 120

y = 30

x = 90

Hence Betty spent $90 and Nan spent $ 30

To learn more about basic algebra visit:

brainly.com/question/15167098

#SPJ9

The points plotted in the cartesian plane are:

A( - 6 , 8 )

B( -2 , 8 )

C( - 2 , 2 )

D( - 6 , 2 )

The intersection of two perpendicular lines forms a cartesian plane. The X-axis is the horizontal line, and the Y-axis is the vertical line.

1st Quadrant - x > 0 and y > 0. Thus, the sign = ( +, +).

2nd Quadrant - x < 0 and y > 0. Thus, the sign=  ( -, +).

3rd Quadrant - x < 0 and y < 0. Thus, the sign = ( -, -).

4 th Quadrant - x > 0 and y < 0. Thus, the sign= ( +, -).

In this given question all the points lie in the second quadrant that is all the point are of the form ( - x, y)

Thus the points are A( - 6 , 8 )

B( -2 , 8 )

C( - 2 , 2 )

D( - 6 , 2 )

to know more about coordinate geometry visit:

https://brainly.com/question/28182497

#SPJ13

The equivalent ratios are 14:56 and 5 : 20 .

A ratio in mathematics shows how many times one number appears in another. For instance, if there were eight oranges and six lemons on a fruit platter, the ratio of oranges to lemons would be eight to six.

By dividing each quantity by the sum of all the numbers' common components, ratios can be reduced (much like fractions are). The fraction is said to be in its simplest form when the ratio's numbers are the tiniest practical integers.

A and B are frequent names for the ratio's antecedent and consequent, respectively.

The given ratios are 2 : 8 and 7 : 28 . which when simplified given the ratio 1 : 4 .

Now we know that 1 / 4 = k which is the common ratio.

Hence 14 / x = k = 1 / 4

or , x = 56

Again 5 / y = k = 1 / 4

or , y = 20

Therefore the equivalent ratios are 14:56 and 5 : 20 .

To learn more about ratio visit:

brainly.com/question/13419413

#SPJ1

The equation of the lines are:

5. y - 5 = -3(x - 1)

6. y - 3 = 2(x + 4)

7. y - 6 = -4/3(x - 1)

8. y - 8 = -12/9(x + 2)

9. y = -5x + 1

10. y + 1 = -2(x - 2)

11. y - 1 = 2/3(x - 3)

For any given line, the equation that represents the line can be written as:

5. Substitute m = -3, and (a, b) = (1, 5) into y - b = m(x - a):

y - 5 = -3(x - 1) [equation in point-slope form]

6. Substitute m = 2, and (a, b) = (-4, 3) into y - b = m(x - a):

y - 3 = 2(x - (-4))

y - 3 = 2(x + 4) [equation in point-slope form]

7. Given the points, (4, 2) and (1, 6)

Find the slope (m):

Slope (m) = change in y/change in x = (6 - 2)/(1 - 4)

Slope (m) = -4/3

Substitute m = -4/3, and (a, b) = (1, 6) into y - b = m(x - a):

y - 6 = -4/3(x - 1) [equation in point-slope form]

8. Given the points, (-2, 8) and (7, -4)

Find the slope (m):

Slope (m) = change in y/change in x = (-4 - 8)/(7 -(-2))

Slope (m) = -12/9

Substitute m = -12/9, and (a, b) = (-2, 8) into y - b = m(x - a):

y - 8 = -12/9(x - (-2))

y - 8 = -12/9(x + 2) [equation in point-slope form]

9. y - 6 = -5(x + 1)

y - 6 = -5x - 5

y - 6 + 6 = -5x - 5 + 6 [addition property of equality]

y = -5x + 1 [equation in slope-intercept form]

10. Find the slope (m):

Slope of the line (m) = rise/run = -2/1

Slope (m) = -2

Substitute m = -2, and (a, b) = (2, -1) into y - b = m(x - a):

y - (-1) = -2(x - 2)

y + 1 = -2(x - 2) [equation in point-slope form]

11. Find the slope (m):

Slope of the line (m) = rise/run = 2/3

Slope (m) = 2/3

Substitute m = 2/3, and (a, b) = (3, 1) into y - b = m(x - a):

y - 1 = 2/3(x - 3) [equation in point-slope form]

Learn more about the equation of a line on:

https://brainly.com/question/13763238

#SPJ1

Answer: 64

Step-by-step explanation:

If angle A is 116, then the angle C is also 116. As the sum of the angles of a parallelogram is 360, the sum of B and D should be 360 - 2*116 = 132. Hence, the angles B and D should be each 132/2 = 64

Answer:

you nrriebr dhdhxbe ahowe a grap by doing your work

Answer: g=-16.3

Step-by-step explanation:

ya welcome

The resulting complex number is -10 - 10i.

             z₁ - z₂ = (a + ib) - (c + id)

                       =  (a - c) + i(b - d)

Given complex number: -4-(1+i)-(5+9i)

-4-(1+i)-(5+9i)

Remove the parentheses and combine the real and the imaginary parts respectively.

(- 4 -1 -5) - i(1 + 9)

-10 - 10i

To learn more about complex numbers visit:

https://brainly.com/question/11547610

#SPJ9

When the ratio of the number of miles run to the number of miles biked is equivalent for each row in the table, the value for A is C. 2 3/4.

It should be noted that based on the information, the table has been given and the appropriate figures have been put into it.

The constant rate will be:

7 / 3 1/2 = 2

Now we can then write the relationship and this is illustrated as:

B = 2R

where B is the distance biked

R = the distance that's run.

We want to find the missing value of A. This is illustrated as:

5 1/2 = 2 × A

2A = 5 1/2

A = 2 3/4

Therefore, based on the information given, the correct option is C.

Learn more about ratio on:

https://brainly.com/question/11710048

#SPJ1

The ratio of the number of miles run to the number of miles biked is equivalent for each row in the table.

Complete the table for A

A 2 1/4

B 2 2/4

C 2 3/4

D 3 3/4

Cans of paint (k) = Birdhouses painted

x= cans of paint

y= Birdhouses painted

y= kx

Where k is the constant of proportionality.

Replace with a set of points and solve for k

(x,y) = (3,15)

15= k 3

15/3 = k

k=5

The attached figure shows the location of P' and R' in the figure, after the dilation

Dilation involves enlarging or reducing the side length of a shape to create another shape by a constant scale factor, where the scale factor does not equal one.

The figure that completes the question is added as an attachment

From the figure, we have the following parameters

The image of dilation using the above parameters is the scaled factor of the given figure

As a general rule, the following are the properties of a scaled copy of another figure

The above means that

New lengths = Old lengths * Scale factor

So, we have

P'R' = PR * Scale factor

C'R' = CR * Scale factor

This gives

P'R' = 5 * 3

P'R' = 15

C'R' = 2.6 * 3

C'R' = 7.8

Using the above as a guide, the location of P' and R' are identifies in the figure

Read more about dilation at

https://brainly.com/question/3457976

#SPJ1

Answer:

Yes, the side lengths

Explanation:

To be able to determine if the given side lengths of the triangle will form a right triangle, we'll have to apply the Pythagorean Theorem which states, in a right-angled triangle, the square of the hypotenuse(the longest side) must be equal to the sum of squares of the other two sides.

So let's go ahead and confirm;

Since the Pythagorean theorem is obeyed as we can see above, then the side lengths will form a right triangle.

The function's domain and range are (-3, -3, 2, 4) and (-2, 7, 1, 6) correspondingly.

The value of the independent function for which the function exists is referred to as the function's domain.

The value of the dependant function, for which the function exists, is referred to as the function's range.

The values in the x-column of the provided table are the domain, and the values in the y-column are the range.

The domain are shown in the table as  (-3, -3, 2, 4) and the range as R = (-2, 7, 1, 6) Visit this link to learn more about domain and range: brainly.com/question/10197594

#SPJ1

The function for profit given the conditions for  revenue and expense is P = $20a - $1,600.

The first claim is incorrect because profit is $400

The first claim is incorrect because profit is $4,400.

Profit is revenue less total cost. Total cost consists of fixed cost and variable cost. Fixed cost is the cost that does not change with the level of output. Variable cost is the cost that changes with output. It increases as the level of output increases. Revenue is output multiplied by price per unit.

Profit = revenue - total cost cost

Profit = (price x output) - fixed cost - variable cost

P = ($45 x a)  - $1,600 - ($25 x a)

P = $45a - $1,600 - $25a

P = $20a - $1,600

Where:

P = profit

a = output

Profit when 100 units is sold:

P = (20 x 100) - $1,600

$2,000 - $1,600 = $400

Profit when 300 units are sold

P = (300 x 20) - $1600

$6,000 - $1,600 = $4,400

To learn more about profit, please check: https://brainly.com/question/26181966

#SPJ1

Answer:

522 1/2  revolutions

Step-by-step explanation:

First convert 13 3/4 into improper fraction

13 3/4 = (13 x 4 + 3)/4 = 55/4

Since these many revolutions are made in 1 minute, to find total number of revolutions made in 38 minutes, simply multiply 55/4 x 38

==> 55/4 x 38 = (55 x 38)/4 = 2090/4

Divide by 2 both numerator and denominator

==> (2090 ÷ 2)/(4 ÷ 2) = 1045/2 = 522 1/2

The initial value is the initial profits of the company, so:

Answer a: $25,000

The decay factor is the percentage in what the profits have been decreasing, so:

Answer b: 6% or 0.06

Finally, the profits every year can be calculated as:

Answer c: $15,239

The probability that the life span of the monitor will be more than 15,240 hours = 0.055

Given,

Monitors manufactured by TSI Electronics have life spans that have a normal distribution with a variance σ^2 = 1,960,000 of  and a mean life span of μ = 13,000 hours.

Here, σ = [tex]\sqrt{1,960,000}[/tex] = 1,400

Let x represents  the life span of a monitor.

Then , the probability that the life span of the monitor will be more than 15,240 hours will be :-

= P(x > 15,240) = P[(x - μ)/σ >  (15,240 - 13,000)/ 1,400 ]

= P (z > 1.6) =  1 - P(z ≤ 1.6)  [∵ P(Z > z ) = 1 - P(Z ≤ z) ]

= 1 - 0.9452  = 0.0548 ~ 0.055

Hence, the probability that the life span of the monitor will be more than 15,240 hours = 0.055

Learn more about Normal Distribution at:

https://brainly.com/question/12421652

#SPJ1

A point that lies in the middle of a line and is equally spaced from its ends is the line's midway. The formula for the line's midpoint is [(x)1 + (x)2]/2, [(y)1 + (y)2]/2 if the line's endpoints are (x)1, (y)1, and (x), (y), respectively.

Using the equations [(x)1 + (x)2]/2, [(y)1 + (y)2]/2, one may get the midway. Here, the coordinates of two points are (x), (y), (x)2, (y)2, and the midway is a location that is equally spaced from both of these positions.

The exact middle number between two numbers is referred to as the midway. The midpoint calculation is the same as the two-number average calculation. Therefore, by adding any two numbers together and dividing by two, you may find the halfway between any two integers.

The distance formula, which is derived from the Pythagorean Theorem, is employed to determine the separation between two points in the plane. The Pythagorean Theorem is based on a right triangle where the angles are a and b.

To learn more about midpoint refer to:

https://brainly.com/question/18315903

#SPJ13

For the given functions, we have that:

a) The numeric value of the division function at x = 4 is of (h/g)(4) = 81/21 = 3.86.

b) The value that is not in the domain of the division function is of x = -1.25.

In this problem, the functions that we are given are defined as follows:

To find the quotient function of h(x) and g(x), we just divide the function h(x) by the function g(x), that is:

h(x)/g(x) = [(x + 5)(x + 5)]/(4x + 5).

At x = 4, the numeric value is found replacing each instante of x by 4, hence:

(h/g)(4) = [(4 + 5)(4 + 5)]/(4(4) + 5)) = 81/21 = 3.86.

The denominator of a fraction cannot be zero, as division by zero does not exist, hence the value of x that is not on the domain of the division function is found as follows:

4x + 5 = 0.

4x = -5.

x = -5/4

x = -1.25.

The complete problem is given by the image at the end of the answer. There are lots of instances of this problem, just with different functions, so we use the functions given in this problem and not on the image.

More can be learned about functions at https://brainly.com/question/24808124

#SPJ1

It depicts horizontal linear equation, as the slope is 0.

The slope of horizontal lines is zero. Consequently, m = 0 in the slope-intercept equation y = mx + b. Y = b, where b is the y-coordinate of the y-intercept, results in the equation.

The y-coordinate of every point on a horizontal line is the same. The line's equation is y=b if two points share the same y coordinate, b. The point (0,b) is the y-intercept of the horizontal line y=b. Horizontal lines don't have an x -intercept other than the line y=0.

A horizontal line is a line that is perpendicular to the x-axis. Because the value of x never changes, the graph of a relation of the form x = 5 is a line parallel to the y-axis.

To learn more about linear equation from given link

https://brainly.com/question/2030026

#SPJ10