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Mathematics 8 Online
OpenStudy (anonymous):

An arrow is shot into the air and its path is modeled by the function h(x) = -4.9t^2 + 34.3t - 49 where "h" is the height of the arrow (given in meters) at any given time t (given in seconds). Find the number of seconds necessary for the arrow to reach its maximum height.

OpenStudy (amistre64):

-b/2a

OpenStudy (amistre64):

in other words, its path is an inverted parabola whose axis of symettry marks its acme

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