document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=122394>Question 122394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a child at a swimming pool jumps off a 12 foot platform into the pool. the child's height in the feet above the water is modeled by <BR>\n" );
document.write( "h(t)=-16t to the power of 2 +12, where t is the time in seconds after the child jumps. how long will it take the child to reach the water?\r<BR>\n" );
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document.write( "if you can show me the work please <BR>\n" );
document.write( "thank you for your help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #89863 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=89863\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a child at a swimming pool jumps off a 12 foot platform into the pool. the child's height in the feet above the water is modeled by <BR>\n" );
document.write( "h(t)=-16t to the power of 2 +12, where t is the time in seconds after the child jumps. how long will it take the child to reach the water? <BR>\n" );
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document.write( "The child's distance above the water when it hits the pool is zero.<BR>\n" );
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document.write( "Let the height be zero and solve for \"t\".<BR>\n" );
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document.write( "-16t^2+12 = 0<BR>\n" );
document.write( "-4t^2+3 = 0<BR>\n" );
document.write( "t^2 = 3/4<BR>\n" );
document.write( "t = sqrt(3)/2 seconds or appoximately 0.8660 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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