document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1180658>Question 1180658</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tom runs a dog kennel. He has purchased 80 m of fencing to<BR>\n" );
document.write( "build an outdoor exercise pen against the wall of the kennel.\r<BR>\n" );
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document.write( "A. If x represents the width of the pen, write an expression for its length.\r<BR>\n" );
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document.write( "B. Write a relation, in terms of x, for the area of the exercise pen. Identify<BR>\n" );
document.write( "the factors of the relation.\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #810392 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52788)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=810392\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;From the context, the pen has 3 walls: one wall is parallel to the wall of the kennel \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and two other walls are perpendicular to it.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The problem must say it directly and explicitly, but the problem's composer failed to do it, UNFORTUNATELY.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Because he (or she) has no experience in formulating Math problems).\r<BR>\n" );
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document.write( "If x represents the width of the pen, then the length of the pen is  (80-2x) meters.\r\n" );
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document.write( "It is the answer to the first question.\r\n" );
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document.write( "The area of the pen is the product of its width by its length\r\n" );
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document.write( "    area = x*(80-2x) =  -2x^2 + 80x.\r\n" );
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document.write( "It is the answer to the second question.\r\n" );
document.write( "</PRE>\r<BR>\n" );
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document.write( "All questions are answered and carefully explained.\r<BR>\n" );
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document.write( "The solution is complete.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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