smangar3952 smangar3952

14-09-2022
Mathematics

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a. Suppose that the water level varies 70 inches between low tide at 8: 40 A.M. and high tide at 2: 55 P.M. What is a cosine function that models the variation in inches above and below the average water level as a function of the number of hours since 8:40 A.M.?

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