In how many ways can 3 identical emeralds 2 identical diamonds and 2 different opals be arranged in a row in a display case

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Find the zeros of each function. f(x) = x^2 + 5x - 6