document.write( "Question 905666: h=-16x^2+100x+29 . how long after the rocket is launched it will hit the ground.
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Algebra.Com's Answer #549313 by Alan3354(69443)\"\" \"About 
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h=-16x^2+100x+29 . how long after the rocket is launched it will hit the ground.
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\n" ); document.write( "Solve for x when h = 0.
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\n" ); document.write( "PS That's not a rocket, it's a projectile.
\n" ); document.write( "Rockets have thrust and accelerate upward.
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