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Mathematics 8 Online
OpenStudy (anonymous):

HELP PLEASE The height of an object thrown upward from the surface of a planet is given by the function s(t) = –2t2 + 28t, where t is the time in seconds and s(t) is the height in meters. What is the speed of the object at time t = 4? 12 meters/second 14 meters/second 16 meters/second 18 meters/second

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