Modeling with Trigonometric Functions · Exercise 28
Construct a sinusoidal function with the provided information, and then solve the equation for the requested values.
In a certain region, monthly precipitation peaks at 24 inches in September and falls to a low of 4 inches in March. Identify the periods when the region is under flood conditions (greater than 22 inches) and drought conditions (less than 5 inches). Give your answer in terms of the nearest day.
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OpenStax, Precalculus 2e · §7.6 Modeling with Trigonometric Functions · Exercise 28
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