Question

A sound wave is modeled with the equation y =1/4 cos 2pi/3 theta

a. Find the period. Explain your method.

b. Find the amplitude. Explain your method

Answer 1

B XD

Answer 2

\[y = \frac{ 1 }{ 4 } \cos 2\pi/3\]

Answer 3

there's supposed to be a theta at the end don't know why it didn't show

Answer 4

can you help me answer this?

Answer 5

idk im not sure hold on

Answer 6

nm sorry @mathmale help him or her

Answer 7

ok, I looked at some different answers to the same question and didn't really get how they got the answer. http://openstudy.com/updates/519e5489e4b04449b22151a5

Answer 8

opk hold on

Answer 9

you know what I actually think I figured it out myself, thank you anyways!