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anonymous

  • one year ago

A baseball is thrown with a vertical velocity of 50 ft/s from an initial height of 6 ft. The height h in feet of the baseball can be modeled by h(t) = -16t2 + 50t + 6, where t is the time in seconds since the ball was thrown. It takes the ball approximately _____ seconds to reach its maximum height. (Round to the nearest tenth of a second and enter only the number.)

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  1. anonymous
    • one year ago
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    @midhun.madhu1987

  2. Zale101
    • one year ago
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    When you are looking at the highest point that object reached to, you'd have to consider the vertex. The vertex can be the min or the max in a parabola (quadratic equation). But since we threw in object, our parabola is an upside down parabola. Hence your equation h(t) = -16t2 + 50t + 6, the quadratic equation is negative because it is an upside down parabola. |dw:1438759954750:dw|

  3. Zale101
    • one year ago
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    Do you remember the process of finding the vertex of a parabola? You complete the square or use the vertex formula to find the vertex of a given standard equation like h(t) = -16t2 + 50t + 6. Do you remember on how to do any of this?

  4. Zale101
    • one year ago
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    Since we are dealing with an upside down parabola, our vertex is the global maximum of the function.

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