The sound wave for the note a above middle c can be modeled by the function y = 0.001 sin 880 π ø. what is the amplitude of this equation?

a. 0.001
b. 880
c. π
d. 0.88
e. 288.25

Option A

Step-by-step explanation:

The sinusoidal functions have the following form

Where

is the period of the function

A is the amplitude: Half the difference between the minimum value and the maximum value of the function.

In this case the function is:

Therefore the amplitude of this equation is

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7