Please can someone help my assignment in math.​

B1. MC=21

This is because midline theorem tells us that similar triangles inside of a triangle had a side parallel to it that is half of its length.

So, we multiply 10.5 by 2 to get the longer side!

B2. AI=16

Same deal as the last one; however, this time were just dividing by 2 since it’s the smaller length :))

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.