OpenStudy (anonymous):

The water level varies from 12 inches at low tide to 52 inches at high tide. Low tide occurs at 9:15 a.m. and high tide occurs at 3:30 p.m. What is a cosine function that models the variation in inches above and below the water level as a function of time in hours since 9:15 a.m.?

4 years ago
OpenStudy (anonymous):

Set up a trig equation. With 12 being the min and 52 the max. 52-12 would be the displacement value in the trig equation.

4 years ago
OpenStudy (anonymous):

thats the answer

4 years ago
OpenStudy (anonymous):

no

4 years ago
OpenStudy (anonymous):

can try and help because this is the last question on my homework

4 years ago
OpenStudy (anonymous):

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4 years ago