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Sagot :
Answer:
So far, so good. Remember the rocket goes up, and then comes back down again. What you have discovered so far is that the height is 528 feet 3 seconds after launch, and then it keeps going up. At some point it starts coming back down again, and at 11 seconds after launch it passes 528 feet again.
Part b is exactly the same problem, except that you use 0 instead of 528. You will get two roots for your equation again, one will be 0 because the rocket is on the ground at time 0, and the other will be the time it hits the ground on the way back down.
Step-by-step explanation:
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