Ky found the following ratios. Triangles P Q R and E F G are shown. The ratio of side P Q to E F is 9 to 18. The ratio of side Q R to F G is 15 to 30. The ratio of side R P to G E is 19 to 38.

Is △PQR ~ △EFG?

No, the triangles are not similar.
Yes, the triangles are similar by the SSS similarity theorem.
There is not enough information to determine whether the triangles are similar.

The answer is B. Yes, the triangles are similar by the SSS similarity theorem.

Step-by-step explanation:

I took the assignment, and I am smort. :)

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answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

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