SOLUTION: A golf ball is hit into the air. The path of the ball can be described by the equation h=70t-5t(squared) where h is the height of the ball in meters and t is the time in seconds.

Question 38318: A golf ball is hit into the air. The path of the ball can be described by the equation h=70t-5t(squared) where h is the height of the ball in meters and t is the time in seconds.
A. how high is the ball after 3 seconds
B. after how many seconds will the ball be 169 meters high
C. when will the ball hit the ground?
~Thanx,
Steve
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
A. how high is the ball after 3 seconds

B. after how many seconds will the ball be 169 meters high

't' is either or
The answer is because you can not have a negative time. The answer is about 10.8987
C. when will the ball hit the ground?

set to zero (use product property)
t=0
70-5t=0
-5t=-70
t=14
The ball will hit the ground after 14 seconds.
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