Answer:
The amplitude is 
Step-by-step explanation:
Let f(x) be a sinusoid function that has the following format:

Then b is the amplitude of the function
h is the vertical displacement of the wave
s is the phase angle
is the period.
In this problem 
Then 
Therefore the amplitude of the function is 
The amplitude is a measure of the vertical size of the sinx wave
Answer:
I do not have answer keys
Step-by-step explanation:
But i can be of greater help with your questions
Answer:
A≈61.94
Just plug it into a calculator
Answer:

Step-by-step explanation:

Put n = 2 and next n = 3 to the recursive formula:

Answer:
61
Step-by-step explanation:
82+37=119. 180-119=61. remember triangles always add up to 180°