document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=876955>Question 876955</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please help me?<BR>\n" );
document.write( "1. Find the sum of each arithmetic series.<BR>\n" );
document.write( "Part I: -15 + -3 + 9 + 21 + 33 + 45 + 57 + 69 + 81 + 93<BR>\n" );
document.write( "Step 1: The formula for the sum of an arithmetic series is , where Sn is the sum of the terms in the series, n represents the number of terms in the series, a1 is the first term in the series, and an is the nth term in the series. <BR>\n" );
document.write( "Find the value of each of the following: <BR>\n" );
document.write( "a1 =________, an = ________, and n = ________. (1.5 points; 0.5 points each)<BR>\n" );
document.write( "Step 2: Use the formula to find the sum. Show your work. <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 #529074 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=529074\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Just this much help:<BR>\n" );
document.write( "The common difference is 12, and the term at index 1 is -15.\r<BR>\n" );
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document.write( "You can either derive yourself the formula for sum of an arithmetic sequence or look for the formula in your book chapter. </SPAN>\n" );
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