Answer:
Step-by-step explanation:
I think ur is D but I'm not sure
Answer:
0 < x < 12
Step-by-step explanation:
Since it's given that side a and side b both have a length of 6, side c has to be 0 < x < 12.
Answer:
The amplitude is 1/5
Step-by-step explanation:
Given

Required
Determine the amplitude
The general cosine function is:

Where

Compare
and 

So:


Answer:
it's answer is 68°.......