Given an unknown angle A, which of the following ratios are mathematically possible ratios for sinA? (Hint: think about what makes up the ratios, and what their relationship is) 4/5 9/5 2/5 5/9 7/4 5/4

The answer is 225 miles per 4.5 hours. hope this ; )

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.

The answer is 60.9774