Mathematics: Ireally need a sound wave is modeled with the equation y = 1/4 cos 2 pi/3 theta a. find the period. explain your method. b. find the amplitude. explain your method. c. what is the equation of the midline? what does it represent? i really need on this one!

Ireally need a sound wave is modeled with the equation

Ответ:

ayoismeisjjjjuan

18.01.2022

$y=A \cos(Bx)$
A - amplitude
$\frac{2\pi}{B}$ - period

$y = \frac{ 1 }{ 4 } \cos \frac{ 2\pi }{ 3 } \Theta$

1. A = $\frac{1}{4}$
2. $\frac{2\pi}{B}=\frac{2\pi}{\frac{2\pi}{3}}= \frac{\frac{2\pi}{1}}{\frac{2\pi}{3}}= \frac{3\times2\pi}{1\times2\pi}=3$
3. Since nothing is added or subtracted outside, the "midline" is the x axis y = 0

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Ответ:

kamjay2006

18.05.2023

Mathematics

2/6 because there are two numbers out of six

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Ireally need

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

a. find the period. explain your method.
b. find the amplitude. explain your method.
c. what is the equation of the midline? what does it represent?

i really need on this one!

Ответ:

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