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) = 4.9t2 + 217t + 269.
Assuming that the rocket will splash down into the ocean, at what time does splashdown occur?
The rocket splashes down after how many seconds?
How high above sea-level does the rocket get at its peak?

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Ответ:

cbear5626

06.03.2023

Mathematics

the answer is 4

Step-by-step explanation:

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