Question: On a Florida beach, the tides have water levels about 4 m between low and high tides. The period is about 12.5 h. Find a

On a Florida beach, the tides have water levels about 4 m between low and high tides. The period is about 12.5 h. Find a cosine function that describes these tides if high tide is at midnight of a given day. Sketch the graph.

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