if an object is propelled upward from a height of s feet at an initial velocity of v feet per second, then its height h after t seconds is given by the equation h=-16t^2+vt+s where h is in feet. If the obct is propelled from a height of 12 feet with an initial velocity of 64 feet per second, its height h is given by the equation h=-16t^2+64+12

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anonymous · Answer

What's the question here? are we filling in the equation?

anonymous · Answer

Oh I am sorry the question was after how many seconds is the height 72 feet

kinggeorge · Answer

Can we move the conversation to your post in the mathematics section please? Just to try and keep things on topic. http://openstudy.com/study#/updates/53226e8de4b04b5f5fab14ec