document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=577920>Question 577920</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many terms are in the geometric sequence 8, 24, 72...648? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #370396 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=370396\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many terms are in the geometric sequence 8, 24, 72...648?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "r = 24/8 = 3<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "a(n) = ar^(n-1)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "8(3)^(n-1) = 648<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "3^(n-1) = 81<BR>\n" );
document.write( "3^(n-1) = 3^4<BR>\n" );
document.write( "n-1 = 4<BR>\n" );
document.write( "n = 5<BR>\n" );
document.write( "----<BR>\n" );
document.write( "There are 5 terms.<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================ </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );