2 years ago

What is the scale factor of two regular pentagons with areas of 147 ft.² and 12 ft.²

Mathematics

1 answer:

astra-53 [7]2 years ago

7 0

12.25 is the scale factor if the pre image is 12 and the image is 147

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Y is directly proportional ( x+2)² <br> when x = 8 y= 250 <br> find y when x = 4

sladkih [1.3K]

Answer:

y=90 when x=4

Step-by-step explanation:

We are given that

$y\propto (x+2)^2$

When x=8 and y=250

We have to find the value of y when x=4

$y=k(x+2)^2$

Where k= Proportionality constant

Substitute the values

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$250=100k$

$k=\frac{250}{100}$

$k=5/2$

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Then, we get

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3 years ago