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    solve a quadratic equation with irrational roots

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    When a ball is thrown, its height in meters h after t seconds is given by the equation

    h = vt- 5t^2
    Where v is the initial upwards velocity in meters per second.

    If v = 7 m/s, find all values of t for which h = 1 meter.
    Do not round intermediate steps. Round the answer to 2 decimal places.

    If there is more than one answer, use "or" to state.

    Please see the attached file for the fully formatted problems.

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