It is a right Right Triangle because, they have two equal sides.
Answer:
b
Step-by-step explanation:
i took the test
Step-by-step explanation:
(b) If
then
Note that
cancel out so we get

Solving for
we get

(c) I'm not sure what the problem is asking for but here goes. As r doubles,
becomes

The quadratic formula solves for X so u can plot it on a graph. it solves for X by subtracting and another way by Adding so you get 2 x's
Answer: 
<u>Distribute</u>
<u></u>
<u></u>
<u></u>
<u>Combine Like Terms</u>
<u></u>
<u></u>