A rose thrown onto a platform has a height, h(t), given by the formula -16t^2 + 32t + 20. How long will it take before the rose hits the ground?
What I did with past problems on the worksheet was this:
h(t)=18x-6x^2
h(t)=-6x (-3 + x)
x=0, 3
3 seconds
But it doesn't seem to work with this problem, so I decided to ask here.
PLEASE, don't just post the answer, show the work, explaining a bit if needed. Or, you don't even have to post the answer, just tell me how you go about doing this problem.
Thanks ^_^
2007-04-25
12:21:06
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6 answers
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asked by
Cookiemonster
4