document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=537542>Question 537542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the center and length of a circle with the equation 81x^2 + 81y^2 = 1? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #352913 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=352913\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the center and length of a circle with the equation 81x^2 + 81y^2 = 1?<BR>\n" );
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document.write( "Standard form of an equation for a circle: (x-h)^2+(y-k)^2=r^2, (h,k) being the (x,y) coordinates of the center, r=radius.<BR>\n" );
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document.write( "81x^2 + 81y^2 = 1<BR>\n" );
document.write( "Divide by 81<BR>\n" );
document.write( "x^2+y^2=1/81<BR>\n" );
document.write( "center: (0,0)<BR>\n" );
document.write( "radius: &#8730;(1/81)=1/9 (I assumed this what you meant by length of a circle) </SPAN>\n" );
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