document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=55366>Question 55366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The position of an object moving in a straight line is given by s=t^2-8t, where s is in feet and t is the time in seconds the object has been in motion.  How long (to the nearest tenth) will it take the object to move 10 feet? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #37558 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=37558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> s=t^2-8t<BR>\n" );
document.write( "10=t^2-8t<BR>\n" );
document.write( "t^2-8t-10=0<BR>\n" );
document.write( "Use the quadratic formula to get:<BR>\n" );
document.write( "t=[8+-sqrt(64+40)]/2<BR>\n" );
document.write( "t=[8+-2sqrt(26)]]2<BR>\n" );
document.write( "t=[4+-sqrt26]<BR>\n" );
document.write( "t= 9.09 seconds<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );