Question: For the following exercises, construct a sinusoidal function with the provided information, and then solve the equation for the requested values. During a 90-day monsoon

For the following exercises, construct a sinusoidal function with the provided information, and then solve the equation for the requested values.

During a 90-day monsoon season, daily rainfall can be modeled by sinusoidal functions. A low of 4 inches of rainfall was recorded on day 30, and overall the average daily rainfall was 8 inches. During what period was daily rainfall less than 5 inches?

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