The number of hours of sunlight in a day of a leap year in part of Ontario can be modelled by a sinusoidal function with a

Question

The number of hours of sunlight in a day of a leap year in part of Ontario can be modelled by a sinusoidal function with a minimum of 8 9 on the 356th day of the year December 21st and a maximum of 15 4 on the 173rd day of the year June 21st a Find a sinusoidal function that models this relationship b What days on the calendar are the closest to 14 hours in length c How long is the 218th day of a leap year

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