document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=520366>Question 520366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I don't know how to do this problem<BR>\n" );
document.write( "Find the coordinates of the center and foci and the lengths of the major and minor axes for the ellipse<BR>\n" );
document.write( "(x+2)2/48+(y-1)2/20=1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #346034 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=346034\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I don't know how to do this problem<BR>\n" );
document.write( "Find the coordinates of the center and foci and the lengths of the major and minor axes for the ellipse<BR>\n" );
document.write( "(x+2)^2/48+(y-1)^2/20 = 1<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "Center: (-2,1)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "major axis: 2a = 2*sqrt(48) = 2*4*sqrt(3) = 8sqrt(3)<BR>\n" );
document.write( "minor axis: 2b = 2*sqrt(20) = 2*2*sqrt(5) = 4sqrt(5)<BR>\n" );
document.write( "---------------------------------------------------<BR>\n" );
document.write( "Foci = ??<BR>\n" );
document.write( "a^2 = b^2 + c^2<BR>\n" );
document.write( "48 = 20 + c^2<BR>\n" );
document.write( "c^2 = 28<BR>\n" );
document.write( "c = 2sqrt(7)<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Foci: (-2-2sqrt(7) , 1) and (-2+2sqrt(7) , 1)<BR>\n" );
document.write( "===========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );