SOLUTION: A plastic hoop is thrown upward from the top of a 168 foot high building at a speed of 88 feet per second. The plastic hoop's height above ground can be modeled by the equation Hbr

Question 1138933: A plastic hoop is thrown upward from the top of a 168 foot high building at a speed of 88 feet per second. The plastic hoop's height above ground can be modeled by the equation Hbracket(t)=-16sup(t,2)+88t+168.
When does the plastic hoop reach the maximum height?
t= seconds
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Hbracket(t)=-16sup(t,2)+88t+168.
?

Maybe more like H(t)=-16t^2+88t+168
?

Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

The correct answer is t = seconds.

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