Asked by Amy
A ball is thrown into the air with an upward velocity of 48ft/s. It's height h in feet after t seconds is given by the function h=-16t^+48t+8. In how many seconds will the ball hit the ground?
I got 1.5 seconds put when I plug it back into the equation, I get it wrong. Thanks for helping!!
I got 1.5 seconds put when I plug it back into the equation, I get it wrong. Thanks for helping!!
Answers
Answered by
Steve
-16t^2 + 48t + 8 = 0
first factor out a -8, and you have
2t^2 - 6t - 1 = 0
1.5 is not a root of that quadratic.
first factor out a -8, and you have
2t^2 - 6t - 1 = 0
1.5 is not a root of that quadratic.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.