A golfer hits a ball that follows the path of g(x) = -16x^2 + 78x + 10 . The golfer is teeing off from an elevated position where g(x) represents the height of the ball as x represents time in seconds 1. what is the initial height of the ball ?

2. when is the ball the highest ?

3. how long is the ball in the air ?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61