document.write( "Question 1145768: A ball is thrown from a height of 205 feet with an initial downward velocity of 11 ft/s. The balls height “h” (in feet) after “t” seconds is given by the following.
\n" ); document.write( "H=205-11t-16t squared
\n" ); document.write( "How long after the ball is thrown does it hit the ground?
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Algebra.Com's Answer #767015 by ikleyn(52878) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "This moment \" t \" is the root of the equation  H(t) = 0,  which is\r\n" );
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document.write( "    -16*t^2 - 11t + 205 = 0,\r\n" );
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document.write( "or, equivalently,\r\n" );
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document.write( "     16t^2 + 11t - 205 = 0.\r\n" );
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document.write( "Solve this quadratic equation using the quadratic formula.\r\n" );
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document.write( "Choose the positive root.  It will be your answer.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Having my instructions, you do the rest.\r
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\n" ); document.write( "\n" ); document.write( "If you still have questions or problems with it, then let me know.\r
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