Eva is jumping on a trampoline. Her height (h) at time (t) can be modeled by the equation h= -16t+20t+6. Would Eva reach a height of 14 feet

Question

Eva is jumping on a trampoline. Her height (h) at time (t) can be modeled by the equation h= -16t+20t+6. Would Eva reach a height of 14 feet? Please help this is quadratics in which I am very bad at. Much help is appreciated.

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Serenity 1 week 2021-10-05T22:59:03+00:00 2 Answers 0

Answers ( )

    0
    2021-10-05T23:00:13+00:00

    Answer:

    No, she would not reach a height of 14 feet.

    Step-by-step explanation:

    I’m assuming you meant h=-16t^2+20t+6

    Plug in 14 for h:

    14=-16t^2+20t+6

    Simplify:

    16t^2-20t+8=0

    Divide by 4:

    4t^2-5t+2=0

    Use quadratic equation:

    (5±\sqrt{25-8*4})/8

    Since you can’t take the square root of a negative number, there is no solution, or that she cannot reach a height of 14 feet

    0
    2021-10-05T23:00:48+00:00

    Answer:

    No.

    Step-by-step explanation:

    h(t)= -16t^2+20t+6, (I assume you left out the exponent as this IS quadratics)

    Put the equation into a graphing calculator and it shows how at the top of the parabola the y axis never reaches 14.

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45:7+7-4:2-5:5*4+35:2 =? ( )