document.write( "Question 113224: A ball is thrown downward from a window in a tall building. Its position at time T in seconds is s=16t^2+32t, where S is in feet. How long (to the nearest tenth) will it take the ball to fall 276 feet? \n" ); document.write( "
Algebra.Com's Answer #82628 by ankor@dixie-net.com(22740)\"\" \"About 
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A ball is thrown downward from a window in a tall building. Its position at time T in seconds is s=16t^2+32t, where S is in feet. How long (to the nearest tenth) will it take the ball to fall 276 feet?
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\n" ); document.write( "The equation:
\n" ); document.write( "16t^2 + 32t = 276
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\n" ); document.write( "16t^2 + 32t - 276 = 0
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\n" ); document.write( "Simplify, divide equation by 4
\n" ); document.write( "4t^2 + 8t - 69 = 0
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\n" ); document.write( "Find t using the quadratic formula: a = 4; b = 8; c = -69
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\n" ); document.write( "\"t+=+%28-8+%2B-+sqrt%288%5E2+-+4+%2A+4%2A+-69+%29%29%2F%282%2A4%29+\"
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\n" ); document.write( "Solve this and the positive solution should be: t = 3.272 \n" ); document.write( "
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