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Math

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The formula h=48t-16t^2 gives the height, h, in feet, of an object projected into the air after t seconds. If an object is propelled upward, at what time(s) will it reach a height of 32 feet above the ground?

  • Math - ,

    h = 48t - 16t^2 = 32 Ft.
    Divide both sides by 16:
    3t - t^2 = 2,
    -t^2 + 3t - 2 = 0.
    Solve using the Quadratic Eq and get:
    t = 1s, and t = 2s.

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