Can someone please explain? How many times are an hour hand and a minute hand of a clock at right angles during their motion from 1.00 p. m. to 10.00 p. m.?
(Most of the people claim the answer is 18, but shouldn't it be 16? Iďk.)

Help will be much appreciated. ​

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.

Pp= 50 pounds of apples