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Mathematics 20 Online
OpenStudy (anonymous):

(HELP FAST, PLEASE) A rocket is launched from atop a 57 foot cliff with an initial vertical velocity of 161 feet per second. The height of the rocket t seconds after launch is given by the equation h=-16t^2+161t+57 (optional: graph the equation) estimate your answer to the nearest tenth of a second.

OpenStudy (anonymous):

Well, that's useful- haha, thanks :)

OpenStudy (primeralph):

You're welcome.

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