Which properties were used to prove that the expressions 7x+4-x-2 and 6x+2 are equivalent?
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Answer:
90.5
Step-by-step explanation:
Velocity is a time-derivative of displacement or the height, in this case.
At maximum height, the velocity is 0 and the height is 128.
Substitute these values into both equations above,
From the first equation,
Substitute for .