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7-19.

It so happens that Hustling Harry's grade in the class at any week t during the semester is calculated by g(t) = 46 cos + 10 sin + 40. At what point during the 18-week semester was Harry's grade equal to his average grade for the semester? Homework Help ✎

This is an application of the Mean Value Theorem.

Show setup and steps. t ≈7.630 weeks