document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=898239>Question 898239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Benjamin threw a rock straight up from a cliff that was 100 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h = -16t^2+60t+100, how long will it take for the rock to hit the water?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #544715 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=544715\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Benjamin threw a rock straight up from a cliff that was 100 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h = -16t^2+60t+100, how long will it take for the rock to hit the water? <BR>\n" );
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document.write( "h= -16t^2+60t+100<BR>\n" );
document.write( "0=(t-5)(-16t-20)<BR>\n" );
document.write( "t=5<BR>\n" );
document.write( "how long will it take for the rock to hit the water? 5 sec </SPAN>\n" );
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