document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=596345>Question 596345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A toy rocket is launched from ground level. Its distance in feet from the ground in t seconds is given by <BR>\n" );
document.write( "   s (t) = - 16 t 2 + 208 t<BR>\n" );
document.write( "At what times will the rocket be 550 feet from 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 #377678 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=377678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A toy rocket is launched from ground level. Its distance in feet from the ground in t seconds is given by <BR>\n" );
document.write( "   s (t) = - 16 t 2 + 208 t<BR>\n" );
document.write( "At what times will the rocket be 550 feet from the ground?<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "s(t) = -16t^2 + 208 t<BR>\n" );
document.write( "s(t) = -16t^2 + 208 t = 55<BR>\n" );
document.write( "-16t^2 + 208 t - 55 = 0<BR>\n" );
document.write( "Solve for t<BR>\n" );
document.write( "It'll be at 550 ft going up, and again coming down.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );