Answer:
The amplitude is 1/5
Step-by-step explanation:
Given

Required
Determine the amplitude
The general cosine function is:

Where

Compare
and 

So:


2108 is the answer. Try to solve it on paper. It’s not hard
Answer:
the sales price of backpack = $25.3
the sale price of sweatshirt = $15.3
The sale price of soccer ball = $24.80
Answer: 8 sq units
Step-by-step explanation:
4 sq units in middle, two triangles on sides are half of four, add two triangles to make whole 4