(a) Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 79 and 91 degrees during the day and the average daily temperature first occurs at 8 AM. How many hours after midnight, to two decimal places, does the temperature first reach 81 degrees? (b) Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 75 degrees occurs at 6 PM and the average temperature for the day is 60 degrees. Find the temperature, to the nearest degree, at 10 AM.

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