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OpenStudy (anonymous):
A firecracker shoots up from a hill 150 feet high with an initial speed of 95 feet per second. Using the formula H(t) = -16t2 + vt + s, determine how long it will take the firecracker to hit the ground. 6.5 seconds 7.2 seconds 7.9 seconds 7.6 seconds
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OpenStudy (anonymous):
s will be your 150 feet v will be 95 :) can you do the rest?
OpenStudy (anonymous):
I think so
OpenStudy (anonymous):
-16t2 + 95t + 150=0 solve for t :D
OpenStudy (anonymous):
I got 7.2
OpenStudy (anonymous):
YESSSSSS 7.23.... :D
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OpenStudy (anonymous):
YAY!! ^.^ thanks
OpenStudy (anonymous):
:D
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