Answer:

Step-by-step explanation:
Cosine is the ratio of the side adjacent to the angle and the right triangle hypotenuse.
B =
= 
Answer: 16a^12 b^16
Step-by-step explanation:
Everything in the parenthesis to the 4th power.
2a^4= 16a
3*4=12
b^4*4=b^16
Answer: 16 percent
Step-by-step explanation:
1. C -9
2. B 7.5
3. A -4
4. C 65
Answer: ARE THEIR OPTIONS TO CHOSE FROM
Step-by-step explanation: