SOLUTION: The height h in feet of an object after t seconds is given by the function
h = –16t^2 + 90t + 3.
How long will it take the object to hit the ground? Round your answer to the
Algebra.Com
Question 89492: The height h in feet of an object after t seconds is given by the function
h = –16t^2 + 90t + 3.
How long will it take the object to hit the ground? Round your answer to the nearest thousandth, and explain which solution is the correct one.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The height h in feet of an object after t seconds is given by the function
h = –16t^2 + 90t + 3.
How long will it take the object to hit the ground? Round your answer to the nearest thousandth, and explain which solution is the correct one.
:
When the object strikes the ground, h = 0, so we have:
-16t^2 + 90t + 3 = 0
:
A quadratic equation, that requires the quadratic formula to solve:
a = -16, b = 90, c = 3
:
:
:
:
; minus a minus is a plus
:
:
Do the math here and you should get two solutions:
t = 5.658
and
t = -.033
:
Obviously, it cannot be a neg value when you are dealing with time of an event
RELATED QUESTIONS
The height h in feet of an object after t seconds is given by the function... (answered by stanbon)
The height h in feet of an object after t seconds is given by the function... (answered by jim_thompson5910)
The height h in feet of an object after t seconds is given by the function
h = –16t^2... (answered by stanbon)
The height h in feet of an object after t seconds is given by the function h =... (answered by Nate)
Can someone show me how to do this problem with step by step instructions. Thank you
The (answered by rapaljer,Earlsdon)
The height h in feet of an object after t seconds is given by the function
h = –16t^2 + (answered by jim_thompson5910)
The height h in feet of an object after t seconds is given by the function
h = –16t^2 + (answered by ankor@dixie-net.com)
The height h in feet of an object after t seconds is given by the function... (answered by stanbon)
The height h in feet of an object after t seconds is given by the function
h = –16t^2... (answered by stanbon)