Solve and check.

c/3=6 1/7

(a).2 1/2

(b).2 1/7

(c).18 1/7

(d).18 3/7

i think its c. am i right?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.