samantha threw an apple out of the tenth floor of her apartment building. The equation y=-16t^2+120 can be used to represent the fruits height above the ground, where t represents time in seconds after she threw the apple. How long did it takr the apple to hit the ground? round to the nearest hundredth.
Accepted Solution
A:
to hit the floor means the height is 0. -16t²+120=0 -16t²=-120 t²=7.5 t=2.74