Answer:

Step-by-step explanation:
The given trigonometric equation is
.
We can either use the Pythagorean identity or the right angle triangle to solve for
.
According to the Pythagorean identity,

Recall that, the cosine function is an even function, therefore

.
We substitute this value in to the above Pythagorean identity to get;






But we were given that,
, so we choose the negative value.

The correct answer is B
Answer:
C = 81.6814089933 in
Step-by-step explanation:

Answer:
I think the answer is "adjacent, supplementary".
Answer:
c
Step-by-step explanation:
8500 x .09 = 765
8500 + 765 = 9265