document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=969142>Question 969142</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve this and how do I come up with a $$ amount?\r<BR>\n" );
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document.write( "Minimum Cost A rectangular area adjacent to a river is to be fenced in; no fence is needed on the river side. The enclosed area is to be 1000 square feet. Fencing for the side parallel to the river is $5 per linear foot, and fencing for the other two sides is $8 per linear foot; the four corner posts are $25 apiece. Let x be the length of one of the sides perpendicular to the river.<BR>\n" );
document.write( " (a) Write a function C(x) that describes the cost of the project.<BR>\n" );
document.write( " (b) What is the domain of C?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #592111 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=592111\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A rectangular area adjacent to a river is to be fenced in; no fence is needed on the river side.<BR>\n" );
document.write( " The enclosed area is to be 1000 square feet. <BR>\n" );
document.write( "Fencing for the side parallel to the river is $5 per linear foot, and fencing for the other two sides is $8 per linear foot; the four corner posts are $25 apiece.<BR>\n" );
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document.write( "the 4 post add $100 to the cost<BR>\n" );
document.write( " Let x be the length of one of the sides perpendicular to the river.<BR>\n" );
document.write( "Let L = the length of side parallel to river<BR>\n" );
document.write( "then<BR>\n" );
document.write( "L*x = 1000<BR>\n" );
document.write( "L = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1000%2Fx ALIGN=MIDDLE  ALT=\"1000%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "(a) Write a function C(x) that describes the cost of the project.<BR>\n" );
document.write( "C(x) = 8(2x) + 5(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1000%2Fx ALIGN=MIDDLE  ALT=\"1000%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >) + 100<BR>\n" );
document.write( "C(x) = 16x + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5000%2Fx ALIGN=MIDDLE  ALT=\"5000%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 100<BR>\n" );
document.write( "(b) What is the domain of C? x > 0 </SPAN>\n" );
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