Wwhhaatt??? I have no idea what your question is.
Answer:
1.177
Step-by-step explanation:
First, we calculate the amplitude
A = (1/2) (xmax - xmin)
A = (1/2) (8 - (-2)) = 5
Since we're given with the period which is pi, then the coefficient of x is just 1. So, the model is
y = 5 sin x
You just need to do 15% of $53.47 which is about $8 (8.0205)
