rofit stefon charges people $25 to test the air quality in their homes. the device he uses to test air quality cost him $500. the function y

Answer:the answer is 4.55

Step-by-step explanation:

Answer:

for every 2 seniors there are 3 juniors or 2:3

The ratio of seniors to total students will be 2: 5.

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

There are 10 seniors and 15 juniors in a gym class.

The total number of students will be given as,

Total students = 10 + 15

Total students = 25

Then the ratio of seniors to total students will be given as,

Ratio = Seniors / Total student

Ratio = 10 / 25

Ratio = 2 / 5

The ratio of seniors to total students will be 2: 5.

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is this somthing that your looking for?

The coordinates of the vertices of the image of the triangular figure with vertices (-5, -3), (-2, -9), (-5, -8) are the points (3, 3), (6, -5), (7, -2)

A reflection transformation is one in which the image points are mirrored about a line of reflection.

The coordinates of the vertices of the triangle following a reflection about the line y = -2·x - 3 can be found as follows;

The coordinates of the vertices of the triangle are; (-5, -3), (-2, -9), (-5, -8)

The slope of the line y = -2·x - 3 is m₁ = -2, therefore, the slope, m₂ of the line of reflection is m₂ = -1/(-2) = 1/2

The equations of the line of reflection are therefore;

y = (1/2)·(x + 5) - 3 = 0.5·x - 0.5

y = 0.5·x - 0.5

The point of intersection can therefore be found as follows;

0.5·x - 0.5 = -2·x - 3

Which indicates, using an online calculator, x = -1

y = 0.5 × (-1) + 0.5 = 0

The point of intersection of the line from (-5, -3) to the image and the line of reflection  is (-1, 0)

(x₁ + x₂)/2 = -1

(-5 + x₂)/2 = -1

x₂ = 3

Similarly; (y₁ + y₂)/2 = 0

(-3 + y₂)/2 = 0

y₂ = 3

The image of the point (-5, -3) following a reflection is (3, 3)

Equation of the line from point (-2, -9) is; y = 0.5·(x + 2) - 9

y = 0.5·x + 1 - 9 = 0.5·x - 8

The point of intersection is; 0.5·x - 8 = -2·x - 3

Which indicates x = 2 and y = -7

(x₁ + x₂)/2 = 2

(-2 + x₂)/2 = 2

x₂ = 6

Similarly; (y₁ + y₂)/2 = -7

(-9 + y₂)/2 = -7

y₂ = -5

The coordinate of the point (-2, -9) following a reflection about the line y = -2·x - 3 is (6, -5)

The equation from the perpendicular line to the line of reflection from the point (-5, -8), is; y = 0.5·(x + 5) - 8 = 0.5·x + 2.5 - 8 = 0.5·x - 5.5

y = 0.5·x - 5.5

The point of intersection with y = -2·x - 3 is therefore at the point; 0.5·x - 5.5 = -2·x - 3

x = 1

y = -5

(x₁ + x₂)/2 = 1

(-5 + x₂)/2 = 1

x₂ = 7

Similarly; (y₁ + y₂)/2 = -5

(-8 + y₂)/2 = -5

y₂ = -2

The coordinate of the point (-5, -8) following a reflection about the line y = -2·x - 3 is (7, -2)

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Answer:

lol

Step-by-step explanation:

need points

Answer:

not even funny

Step-by-step explanation:

u should get banned this website is for education

Answer:

4

Step-by-step explanation:

Good for you mary.

Lol is there a question? I'll answer it if so

Answer:

Initial Value: 25, Rate of change -5.

Step-by-step explanation:

First. Lets find the rate of change.

y2-y1/x2-x1 = m

We have A(1,20) B(3,10)

10-20/3-1=-5

m=-5(Rate of change)

Now let's find the initial value using slope-point form.

y-y₁=m(x-x₁)

y-20=-5(x-1)

=-5x+5+20

=-5x+25

The initial value is the value of y when the value of x is equal to 0. (Also the Y-Intercept)

Initial Value = -5(0)+25

=25

Answer:

Step-by-step explanation:

Slope of a line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,

Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

8). Slope of the line passing through (0, 4) and (-1, 6) will be,

Slope = [tex]\frac{6-4}{-1-0}[/tex]

          = -2

9). Slope of a line passing through (10, 15) and (9, 0),

Slope = [tex]\frac{15-0}{10-9}[/tex]

          = 15

10). Slope of a line passing through (0, -9) and (4, -7),

Slope = [tex]\frac{-9+7}{0-4}[/tex]

          = [tex]\frac{1}{2}[/tex]

11). Slope of a line passing through (2, 20) and (4, 17),

Slope = [tex]\frac{20-17}{2-4}[/tex]

          = [tex]-\frac{3}{2}[/tex]

Answer:

Length of third side is: [tex]\mathbf{8m^3-4m^2+3m}[/tex]

Step-by-step explanation:

Perimeter of triangle = [tex]18m^3+2m^2-m[/tex]

Length of side 1= [tex]5m^3+3m^2-2m[/tex]

Length of side 2= [tex]5m^3+3m^2-2m[/tex]

We need to find length of third side.

The formula used is: [tex]Perimeter \:of\:triangle=Sum\:of\:all\:sides[/tex]

Putting values and finding length of third side.

[tex]Perimeter \:of\:triangle=Sum\:of\:all\:sides\\18m^3+2m^2-m=5m^3+3m^2-2m+5m^3+3m^2-2m+Length\:of\:3rd\:side\\18m^3+2m^2-m=5m^3+5m^3+3m^2+3m^2-2m-2m+Length\:of\:3rd\:side\\18m^3+2m^2-m=10m^3+6m^2-4m+Length\:of\:3rd\:side\\Length\:of\:3rd\:side=18m^3+2m^2-m-(10m^3+6m^2-4m)\\Length\:of\:3rd\:side=18m^3+2m^2-m-10m^3-6m^2+4m\\Length\:of\:3rd\:side=18m^3-10m^3+2m^2-6m^2-m+4m\\Length\:of\:3rd\:side=8m^3-4m^2+3m[/tex]

So, Length of third side is: [tex]\mathbf{8m^3-4m^2+3m}[/tex]

Answer:

9/-2

Step-by-step explanation:

im in algebra and its easy

Answer:

The answer is B I just checked a math sumulater

Step-by-step explanation:

Answer: The answer is A and D

Step-by-step explanation: If you go through all the problems, just replace "b" with "(4)" into a calculator. For A and D, they both equaled 180.

Answer:

Average rate of change = 3

Step-by-step explanation:

here   a = -3 and b = 4

⇒ Average rate of change = f(b) - f(a)  / b - a

                                            = (27 - 6) / (4 - (-3))

                                            = 21 / 7

                                            = 3

Therefore, Average rate of change = 3

Step-by-step explanation:

hey i hope this helps

its kind of blurry but u can still see the answer

Answer:

The answer is 120 inches

Step-by-step explanation:

900 is the area the area of a rectangle is A=lw

So 900=30w

900/30=w

30=w

multiply 30 by 4 to get the perimeter

Answer:

130

Step-by-step explanation:

Answer:

130 (C)

Step-by-step explanation:

We have a translation 3 units downwards and 4 units to the right. So the equation is:

g(x) = ∛(x - 4) - 3

We know that g(x) is a transformation of the parent cube function, which is f(x) = ∛x

If we look at the image, we can see that the graph of g(x) is exactly like the graph of f(x), but translated 3 units downwards and 4 units to the right.

A vertical translation of N units is written as:

g(x) = f(x) + N

A translation of 3 units downwards is written as:

g(x)= f(x) - 3

A horizontal translation of N units is written as:

g(x) = f(x + N)

Then a translation of 4 units to the right is:

g(x) = f(x - 4) - 3

Replacing the function f(x) we get:

g(x) = ∛(x - 4) - 3

That is the transformed function. So the correct option is D

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Answer:

The translated image point would then be (10, -6) (10, -6)

Step-by-step explanation:

The image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit is (4,-6)(4,−6)

A translation is a type of transformation that takes each point in a figure and slides it the same distance in the same direction.

Now the given points are,

(7,-5)(7,−5)

So, when the image points translates right 3 units there is change in x coordinate. Thus,

(7,-5)(7,−5)

= (7-3,-5) (7-3,−5)

= (4,-5)(4,−5)

and, when the image points translates down 1 unit there is change in y coordinate. Thus,

(4,-5)(4,−5)

= (4,-5-1)(4,−5-1)

= (4,-6)(4,−6)

Thus, the image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit is (4,-6)(4,−6).

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Answer:

2:3

Step-by-step explanation:

I checked it and it’s right. I hope this helps!

Answer:

would you mind if you break it down more and explain it much more I'm confused when I look at the question

Answer:

$901

Step-by-step explanation:

x=37units

48 (37) - 875

1776-875

901

Using proportions, we have that:

6. From the last pool, 46.43% of voters were for the candidate.

7. Janie makes the triple amount of Jenny.

8. The balance has increased by 3.02% during the year, not 3%.

9. The statement that 10% of the students in the class are men with blond hair is correct.

10. There is a intersection between the percentages of Democrats and of union members, hence we can not affirm that the sets are independent and that 18% of the voters are Democrats who are union members.

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

For item 6, we have that:

Hence:

1.4x = 65

x = 65/1.4

x = 46.43%.

From the last pool, 46.43% of voters were for the candidate.

For item 7, we have that 200% more than a measure is given by:

x + 2x = 3x.

As the measure by itself is of 100%, hence:

Janie makes the triple amount of Jenny.

For item 8, we have that:

Hence the yearly increase is given by:

1.01 x 1.02 = 1.0302 = 3.02%.

The balance has increased by 3.02% during the year, not 3%, because the 2% increase on the second semester is over the 1% increase in the first semester, hence the coefficients are multiplied.

For item 9, we have that:

Hence:

0.2 x 0.5 = 0.1.

The statement that 10% of the students in the class are men with blond hair is correct.

For item 10, we have that:

There is a intersection between the percentages of Democrats and of union members, hence we can not affirm that the sets are independent and that 18% of the voters are Democrats who are union members.

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Answer:    

Step-by-step explanation: Hope this helped :)

She should/could obtain a bachelor's degree from a university or pass licensing examinations. She could also get a master's degree in an engineering sub-discipline and work experience in the subject. Last but not least, she might pursue more professional certification or join professional associations.

Answer:

total shots to baskets - 50:28 or as a fraction 20/28

Simplified - 25:14 or 25/14

Step-by-step explanation:

Ratios can be written as fractions

If you wanted to do baskets to total shots you would just switch around your numbers and the ratio would become reversed as well.

Answer:

4

Step-by-step explanation:

Let's first simplify all terms, then convert them to /10:

42/12 = 7/2 = 35/10

85/25 = 17/5 = 34/10

117/30 = 39/10

Then the final addition is:

(35-34+39)/10 = 40/10 = 4

Answer:

graph -4/1  and y intercept is 1

Step-by-step explanation: