Acircle has an equation x2 + y2 + 2x ‒ 2y ‒ 38 = 0. what ordered pair represents the center of the circle? a. (2, ‒2) b. (2, ‒38) c. (‒1, 1) d. (1, ‒1)

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

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

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x