document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=608468>Question 608468</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When a ball is thrown in the air, the height h of a ball in feet t seconds after the ball is thrown in the air, is given by the equation height = 25t–16t² \r<BR>\n" );
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document.write( "Use the quadratic equation to determine how many seconds goes by before the ball hits the ground?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #383202 by </B><A HREF=/tutors/aboutme.mpl?userid=flame8855><B>flame8855(424)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=flame8855><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/cgi-bin/show-face.mpl?user=flame8855><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=383202\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> when it hits the ground, height = 0 <BR>\n" );
document.write( "16t^2 -25t=0 <BR>\n" );
document.write( "t(16t-25) = 0 <BR>\n" );
document.write( "t = 0 , (at the beginning of the throw, <BR>\n" );
document.write( "or <BR>\n" );
document.write( "t = 25/16 seconds  </SPAN>\n" );
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