The surface area of a cone is 122.4 in2 and the slant height is 10 in. what is the radius of the cone?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps