document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=305470>Question 305470</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use a quadratic equation and factoring to solve the application.\r<BR>\n" );
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document.write( "A ball falls from the top of a roof 320 feet above the ground.  The formula h= -16t^2 + 16t + 320 described the height of the ball above the ground, h, in feet, t seconds after the fall begins.  How long will it take the ball to strike 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 #218859 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=218859\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 0 = -16t^2 + 16t + 320\r<BR>\n" );
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document.write( "0 = t^2 - t - 20\r<BR>\n" );
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document.write( "0 = (t + 4)(t - 5) </SPAN>\n" );
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