Paul, who is standing 150 feet above the water on a balcony of a cruise ship, sees two boats due north. The angles of depression from Paul to the boats are 33 degrees and 22 degrees. Find the distance between the two boats to the nearest tenth of a foot.

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.