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NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function...

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t^2+277t+283
Assuming that the rocket will splash down into the ocean, at what time does splashdown occur?


How high above sea-level does the rocket get at its peak?

Math   Precalculus   
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