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anonymous
 one year ago
a sound wave is modeled with the equation y = 1/4 cos 2(pi)/3 (then some weird zero with a line through it)... find the period and amplitude ...
anonymous
 one year ago
a sound wave is modeled with the equation y = 1/4 cos 2(pi)/3 (then some weird zero with a line through it)... find the period and amplitude ...

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Loser66
 one year ago
Best ResponseYou've already chosen the best response.1I think you miss x after 2pi/3, right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no there is a weird circle after it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0u missed x after 2pi/3 right??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0there isn't an x on it, but I guess include the x if needed to solve it :/ i just want to know how to answer it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh im sorry im only 12

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1ok, if you don't have x, then it is a point on a graph, no amplitude, no period.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1Suppose there is x there. I meant the function is \(y =(1/4) cos (2\pi/3) x\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes what he said im onlt 12

kropot72
 one year ago
Best ResponseYou've already chosen the best response.2Is this the equation? \[\large \frac{1}{4}\cos \frac{2 \pi}{3} \theta\]

kropot72
 one year ago
Best ResponseYou've already chosen the best response.2The period is given by: \[\large T=\frac{2 \pi}{\frac{2 \pi}{3}}=3\]
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