The function f(x) = −x2 − 9x + 36 shows the relationship between the vertical distance of a diver from a pool's surface f(x), in feet, and the horizontal distance x, in feet, of a diver from the diving board. what is a zero of f(x), and what does it represent? x = 3; the diver jumps in the pool at 3 feet per second x = 3; the diver hits the water 3 feet away horizontally from the board x = 12; the diver hits the water 12 feet horizontally from the board x = 12; the diver jumps in the pool at 12 feet per second

Factor your polynomial to find the zero. When you factor that you get x values of -12 and 3. Because x is a horizontal value representing feet, x = 3 means that he hits the water 3 feet away horizontally from the board. He starts at 36 feet above the pool and has an upwards vertical velocity of 9 feet per second. Your answer, however, is the first choice above.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: