SOLUTION: The height h in feet of an object after t seconds is given by the function h = –16t² + 30t + 8. How long will it take the object to hit the ground? Round your answer to t

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The height h in feet of an object after t seconds is given by the function h = –16t² + 30t + 8. How long will it take the object to hit the ground? Round your answer to t      Log On


   

Question 172099: The height h in feet of an object after t seconds is given by the function
h = –16t² + 30t + 8.
How long will it take the object to hit the ground? Round your answer to the nearest thousandth.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: The ground is at height 0 (zero) feet.

So, at what value t%3E0 does -16t%5E2%2B30t%2B8=0?

Simply solve the quadratic and exclude any negative root. Remember to round to 3 decimal places.