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Intermediate Algebra

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Standing on a platform 60 feet high, a person accidentally fires a gun straight into the air. the formula h=-16t^2+100t+60 describes the bullet's height above the ground, h, in feet,t seconds after the gun is fired. how long will it take for the bullet to hit the ground? round to the nearest tenth on a second.

  • Intermediate Algebra -

    just set h=0 and solve for t:

    t = 1/8 (25+√865) =~ 6.8 sec

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