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2 years ago

What scale factor was used in dilation

Mathematics

1 answer:

Mars2501 [29]2 years ago

3 0

Answer: (c) $\bold{\dfrac{3}{4}}$

Step-by-step explanation:

Chooe any point I am choosing point W.

The W' is closer to C than W so the dilation is less than 1

The only answer choice that is less than 1 is option c.

Why is this the answer? because the side lengths are proportional

$\dfrac{CW'}{CW} = \dfrac{WX'}{WX}= \dfrac{3}{4}$

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$=\displaystyle\int^{\infty}_4 p(x)~ dx\\\\= \displaystyle\int^{\infty}_40.1e^{-0.1x}~dx\\\\=\Big[-e^{-0.1x}\Big]^{\infty}_4\\\\=-\Big[e^{\infty}-e^{-0.4}\Big]\\\\=-(0- 0.6703)\\= 0.6703\\=67.03\%$

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