document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=144072>Question 144072</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618306056/algebrahomeworkh>Beginning Algebra with Applications</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Solve by factoring.<BR>\n" );
document.write( "The radius of a circle is increased by 3 in., which increases the area by 100 in^2. Find the radius of the original circle. Round to the nearest hundredth.<BR>\n" );
document.write( "Please answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #104846 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=104846\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let r=radius __ (pi)(r^2)+100=(pi)((r+3)^2)\r<BR>\n" );
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document.write( "dividing by pi and FOILing __ r^2+(100/pi)=r^2+6r+9 __ subtracting r^2+9 __ (100/pi)-9=6r\r<BR>\n" );
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document.write( "dividing by 6 __ (100/(6*pi))-(3/2)=r </SPAN>\n" );
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