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part a.) Outside temperature over the course of a day can be modeled as a sinusoidal...

part a.) Outside temperature over the course of a day can be modeled as a sinusoidal function. If the low temperature for the day is 42°F and the high temperature is 86°F, calculate the amplitude of the model function.

part b.) Outside temperature over the course of a day can be modeled as a sinusoidal function. If the low temperature for the day is 42°F and the high temperature is 86°F, what is the midline of the model function?

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