Solve the problem.A scientist studying ocean tides places an 8 ft high marker in the water at 6 am on a Monday morning. At that time the water is about 5.5 ft high and receding. The scientist observes that the water reaches its lowest level, 0.1 ft, at 9:18 am and then begins to rise. Assume that the water level, in feet, is given by h(t) = 4.9 sin + 5, where t represents the number of hours after midnight. (In other words, the marker was placed in the water when t = 6.) Find the first time interval during which the marker is completely underwater.

Question

A. Approximately from 2:06 pm to 4:24 pm Monday
B. Approximately from 1:42 pm to 5:18 pm Monday
C. Approximately from 1:18 am to 4:54 am Tuesday
D. Approximately from 11:24 pm Monday to 2:00 am Tuesday

Answer 1

Answer: B