document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=972271>Question 972271</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The number of the sequence is 17, if the second one is 3, what <BR>\n" );
document.write( "is the first number?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #594612 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=594612\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> number of the sequence is 17?<BR>\n" );
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document.write( "arithmetic sequence<BR>\n" );
document.write( "xn = a + d(n-1), where a is first number in sequence, d is common difference, xn is the nth term<BR>\n" );
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document.write( "geometric sequence<BR>\n" );
document.write( "xn = ar^(n-1), where a is the first term, r is the common ratio, xn is the nth term<BR>\n" );
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