F(x) = x^2 + 1
f(4) = 4^2 + 1 = 16 + 1 = 17
2*f(4) = 2 * 16 = 32
I believe this is pythag
15^2 x 11^2 = 27225
(square root) of 27225 = 165
165ft
Answer:
Sorry the screenshot is black but i would like to help if you can repost, it?
Step-by-step explanation:

First, turn
into an improper fraction with a denominator of 4, which matches
.

Now, just add the numerators.
