Which relation is NOT a function? A. {(1, 4), (2, 2), (3,5), (4, 3), (5,1)}
B. {(3,5), (2,5), (1,5), (0,5), (-1,5)}
C. {(3, -1), (5,0), (1, 2), (4,4), (2, 2)}
D. {(1,4), (2,5), (3,6), (2, 2), (1, 1)}

Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.

Brent wants to know what is 5 x 1/2

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103