The number of hours of daylight y for day x (x = 1 to 365) in Anchorage, Alaska, can be modeled by y=7.0sin(2π365x−1.4)+12.4. What is the minimum number of hours of daylight in Anchorage?

5.4 hours

Step-by-step explanation:

As the number of hours of daylight y is modeled as a function of sin, and sin has the minimum value of -1. Therefore

So the minimum number of hours of daylight in Anchorage is 5.4 hours

123

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