H=156-8t-16t^2 in seconds
2 answers:
Answer:
2.882491 seconds
Step-by-step explanation:
H=156-8t-16t²
-16t²-8t+156=0
16t²+8t-156=0
4t²+2t-39=0
t=2.882491 seconds ................
Answer:If you use quadratic formula the answer is (rounded) 2.88s
Step-by-step explanation:
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