The number of hours of daylight in San Diego, California, can be modeled with
H(t) =12 + 2.4sin(0.017t - 1.377) where t is the day of the year (January 1, t = 1 etc) For what values of t is the number of hours equal to 14? Round to 2 decimal places.
A) Number of hours is 138.95
B) Number of hours is 115.45
C) Number of hours is 81.99
D) No Solution

Question

Quizplus · Accepted Answer

The number of hours of daylight is equal to 14 when H(t) = 14. Solving this equation gives t = 138.95 and t = 315.45.

The Number of Hours of Daylight in San Diego, California