The volume of a cone can be calculated using the formula V=13πr2h. Which expression can be used to represent the height, h? (1) 3V2πr

(2) 3Vπr2

(3)V3πr2

(4)V√3πr

(5)V3πr√

Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set.a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}