a ball is thrown into the air with an initial upward velocity of 45 ft/s. its height in feet after seconds is given by the function h=-16t+45t+6. after about how many seconds will the ball hit the ground?
please help

Question

a ball is thrown into the air with an initial upward velocity of 45 ft/s. its height in feet after seconds is given by the function h=-16t+45t+6. after about how many seconds will the ball hit the ground?
 please help

asnaseer · Answer

when the ball hits the ground - what will its height above the ground be?

anonymous · Answer

when will the ball hit the ground?

asnaseer · Answer

First try to answer this: what will be the height of the ball above the ground when it actually hits the ground?