What is the radius of the cone?
An oblique cone has a height equal to the diameter of the
base. The volume of the cone is equal to 180 cubic units.
2x
2 units
3 units
6 units
9 units

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

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

In triangle abc, angle c is a right angle. find the value of the trig function indicated. find tan a if c = 17 and a = 8