document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=993260>Question 993260</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rectangle is 4 feet longer than its width. if the area of the rectangle is 369 sq feet what is its width in feet? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #612583 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=612583\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a rectangle is 4 feet longer than its width. if the area of the rectangle is 369 sq feet what is its width in feet?<BR>\n" );
document.write( "let x=width of rectangle<BR>\n" );
document.write( "x+4=length of rectangle<BR>\n" );
document.write( "length*width=area<BR>\n" );
document.write( "x(x+4)=369<BR>\n" );
document.write( "x^2+4x-369=0<BR>\n" );
document.write( "solve for x by quadratic formula:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "a=1, b=4, c=-369<BR>\n" );
document.write( "ans: x=17.31<BR>\n" );
document.write( "width=17.31 ft<BR>\n" );
document.write( "length=21.31 ft </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );