Assume that when an adult is randomly selected, the probability that they do not require vision correction is 25%. If 7 adults are randomly selected, find the probability that exactly 2 of them do not require a vision correction.

The triangles are similar. what is the value of x? enter your answer in the box. x = two right triangles. the larger right triangle is labeled x on the longer leg, 12 on the shorter leg and 20 on the hypotenuse. the smaller triangle is labeled 4 on the longer leg, 3 on the shorter leg, and 5 on the hypotenuse.

Can someone me i’m confused. will give brainliest and a whole bunch of points

Sketch one cycle if the cosine function y=2cos2theta