SOLUTION: A soccer ball is kicked by a goalkeeper. The height of the ball is given by the equation h = 25t - 5t2, where h is the height in meters, and t is the time in seconds the ball is in

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: A soccer ball is kicked by a goalkeeper. The height of the ball is given by the equation h = 25t - 5t2, where h is the height in meters, and t is the time in seconds the ball is in      Log On


   

Question 1042142: A soccer ball is kicked by a goalkeeper. The height of the ball is given by the equation h = 25t - 5t2, where h is the height in meters, and t is the time in seconds the ball is in the air. Solving the equation h = 0 will determine the times the ball is at ground level.
Solve the equation 25t - 5t2 = 0 to determine how long the ball is in the air
Found 2 solutions by jorel555, ikleyn:
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
25t-5tē=0
5t(5-t)=0
t=0,5
The ball is in the air either 5 seconds, or 0 seconds. ☺☺☺☺

Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
.
The ball started at t = 0 and hit the ground at t = 5 seconds.