A creature on the moon throws a rock off a cliff. The height of the rock above the surface of the moon, in meters, t seconds aft
er it is thrown is given by h(t) = −t 2 + 8t + 10. When does the rock hit the surface of the moon?
1 answer:
Answer:
9.099 seconds
Step-by-step explanation:
The rock hits the surface of the moon when is t is 0.
Use the quadratic formula
t = -1.099 and 9.099
Since time can't be negative, the answer is t = 9.099
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