document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=850419>Question 850419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The area of a square in square feet is represented by 4z^2-36z+81. Find an expression for the perimeter of the square. Then find the perimeter when z=10 feet.\r<BR>\n" );
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document.write( "Expression: ________________<BR>\n" );
document.write( "Perimeter when z=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 #512121 by </B><A HREF=/tutors/aboutme.mpl?userid=Seutip><B>Seutip(231)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Seutip><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=Seutip><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=512121\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since this is the area <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4z%5E2-36z%2B81 ALIGN=MIDDLE  ALT=\"4z%5E2-36z%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" > and finding for the area of square is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+s%5E2 ALIGN=MIDDLE  ALT=\"A+=+s%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > where s is the side, the perimeter P=4s.\r<BR>\n" );
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document.write( "In the area <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4z%5E2-36z%2B81 ALIGN=MIDDLE  ALT=\"4z%5E2-36z%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we can factor it to\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4z%5E2-36z%2B81+=+%282z-9%29%282z-9%29 ALIGN=MIDDLE  ALT=\"4z%5E2-36z%2B81+=+%282z-9%29%282z-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Therefore <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4z%5E2-36z%2B81+=+%282z-9%29%5E2 ALIGN=MIDDLE  ALT=\"4z%5E2-36z%2B81+=+%282z-9%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > ans s = 2z-9\r<BR>\n" );
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document.write( "And the perimeter\r<BR>\n" );
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document.write( "P= 4(2z-9)\r<BR>\n" );
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document.write( "If z=10, substitute\r<BR>\n" );
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document.write( "P = 4(2(10)-9)<BR>\n" );
document.write( "P = 4(20-9)<BR>\n" );
document.write( "P = 4(11)<BR>\n" );
document.write( "P = 44 feet :)\r<BR>\n" );
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document.write( "Hope that helps.\r<BR>\n" );
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document.write( "#rda33 </SPAN>\n" );
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