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3 October, 10:24

You drop a rock off a bridge. The rock's height, h (in feet above the water), after t seconds is modeled by h = - 16t2 + 541. What is the height of the rock after 2 seconds?

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  1. 3 October, 11:18
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    Given the time t = 2 seconds, simply plug in it to the equation.

    h = - 16 (2) ² + 541

    = - 16 (4) + 541

    = - 64 + 541

    h = 477 feet
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