The perimeter of a certain rectangle is 16 times the width. the length is 12 cm more than the width. find the length and width of the rectangle.

Check the picture below

surely you know how much that is.

/-/////////looks tough ‍♂️

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.