Aball is thrown into the air with an upward velocity of 48 ft/s. its height h in feet after t seconds is given by the function h=-16t^2+48t+6. in how many seconds does the ball reach its maximum height? round to the nearest hundredth if necessary. what is the ball’s maximum height? a. 3 s; 6 ft b.1.5 s; 54 ft c. 1.5 s; 114 ft d. 1.5 s; 42 ft