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A toy rocket is launched in an open field. The path of the rocket can be modelled by the relation h=-5(t-3)^2+68.
h= height in meter above the ground
t= the time after the rocket was launched in seconds
(a) what is the maximum height that the rocket reaches?
(b) how long does it take the rocket to reach its maximum height?
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(a) The maximum height is 68 meters.
(b) It will take 3 seconds.