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Rashid [163]
3 years ago
11

Which ordered pair would form a proportional relationship with the point graphed below? 40 (-20,40) 30 20 10 -40-30-20-190 10 20

30 40 x -20 -30 -40 0 (-40, 20) 0 (-10.-20) O (15, -30) O (5, -15)​

Mathematics
1 answer:
sasho [114]3 years ago
6 0

Answer:

(15,-30)

Step-by-step explanation:

By forming a proportional relationship with the marked point, what we are saying is that the same dilation if applied to each coordinates of the marked point will form the new point

The marked point is given as (-20,40)

If we dilate this by -0.75 units

That will give (15, -30)

So this forms a proportional relationship with the marked point

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The function f(x)= 3(1.4)' gives the length (in inches) of an image after being enlarged by 10% x times.
kondaur [170]

Answer:

3.99 inches

Step-by-step explanation:

<u><em>The correct question is</em></u>

The function f(x) = 3(1.1)^x gives the length (in inches) of an image after being enlarged by 10% x times.

What is the length of the image after it has been enlarged 3 times? Round your answer to the nearest  hundredth

we have

f(x)=3(1.1)^x

This is a exponential growth function

where

f(x) represent the length (in inches) of an image

x is the number of times the image is enlarged

so

For x=3

substitute in the exponential equation

f(x)=3(1.1)^3=3.99\ in

4 0
3 years ago
Homework due at 12:00<br> I Need Help
Leya [2.2K]

Answer:

<em>k = - 7.5 </em>

Step-by-step explanation:

Slope "m" of a line through points

( x_{1} , y_{1} )

( x_{2} , y_{2} )

is m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

Slopes of perpendicular lines are opposite reciprocal: m_{1} m_{2} = - 1

~~~~~~~~~~~~~~~

The slope of a line through points (0, 7) and (2, 10)

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or m_{2} = \frac{12-5}{k-3}

\frac{7}{k-3} = -\frac{2}{3}

2(k - 3) = - 21

k - 3 = - 10.5

<em>k = - 7.5</em>

6 0
3 years ago
Simplify the expression by combining Like Terms: 7d + 12– 4d – 3
KATRIN_1 [288]
3d+9
If you are solving for d then d=-3.
Hope this is helpful! :D
4 0
3 years ago
Read 2 more answers
-2(3x-2)+3x+3=34<br> how to solve it
Veronika [31]

Answer:

-35/3

Step-by-step explanation:

-2(3x-2) + 3x + 3 = 34

-6x-4+3x+3=34

-3x-1=34

-3x=35

x=-35/3

4 0
4 years ago
Read 2 more answers
What is the constant of proportionality in the equation 9y = 45x?
Mars2501 [29]
Divide by the coefficient of y.
  y = (45/9)x
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The constant of proportionality is 5.
3 0
3 years ago
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