DONT ANSWER JUST FOR POINTS! PLEASE, PLEASE HELP ME! I NEED THE ANSWER! RIGHT AWAY! ILL GIVE MOST BRAINLIEST!

Mathematics

1 answer:

Nataliya [291]2 years ago

6 0

Answer:

D. They are similar by the definition of similarity in terms of a dilation.

Step-by-step explanation:

<em>Refer to attached</em>

The points are plotted and connected to make triangles

As per the diagram, the triangles are similar, each side of ABC is reduced twice to make the corresponding sides of DEF, so the scale factor is 1/2.

<u>Correct choice is D</u>

They are similar by the definition of similarity in terms of a dilation.

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Please help!

marusya05 [52]

1. $h=40\sqrt{\frac{.45w}{M}}\Rightarrow\frac{h^2}{1600}=\frac{.45w}M\Rightarrow M=\frac{720w}{h^2}$

2. his BMI has to be reduced by 28.5-24.9=3.6

We must thus solve $\frac{720w}{h^2}=3.6$ thus $\frac{720w}{h^2}=3.6h^2/720=.005h^2$ . We can know his height using the first formula : $h=40\sqrt{\frac{.45w}{M}}=40\sqrt{\frac{.45*211}{28.5}}\approx73.01$

Hence he must lose $(73.01)^2*.005\approx26.6$ -> 27 pounds.

We check our result : $720*(211-27)/(73.01^2)\approx24.85$