Answer:
The three equivalent options are: , , and
Step-by-step explanation:
Expand to get .
Simplifying this gets you .
What's this? I don't understand.
10.90⁰
11.126⁰
12.54⁰
13.180⁰
CDE is 180⁰ because it is a straight line
A^2
-3^2 = 9
the answer is 9