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OpenStudy (anonymous):
please help
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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 7.9 seconds 7.2 seconds 7.6 seconds
OpenStudy (anonymous):
I think its b am I right
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