Answer:
The maximum value is 3.
Step-by-step explanation:
The given trigonometric function is

The amplitude of this function is 5.


The function is shifted vertically down by two units.
To find the maximum value, we add -2 to the upper boundary of A.
The maximum values is 5-2=3
18.75 because all sides of a square are equal so 75/4=18.75
19.698 feet of cable would be needed, this would round up to 20 feet total.