document.write( "Question 1145087: A rock is thrown upward with a velocity of 15\r
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Algebra.Com's Answer #766272 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "To answer the question, solve the quadratic equation\r\n" );
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document.write( "    -5t^2 + 15t + 34 = 4.\r\n" );
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document.write( "Simplify \r\n" );
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document.write( "      t^2 - 3t - 6 = 0\r\n" );
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document.write( "and solve it using the quadratic formula.\r\n" );
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document.write( "Choose a positive root.\r\n" );
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