document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=35103>Question 35103</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i really need help on these ones they got me really confused i would appreciate it if i could get some help answering these thank you \r<BR>\n" );
document.write( "\n" );
document.write( "find the sum of the arithmetic sequence having the data given.\r<BR>\n" );
document.write( "\n" );
document.write( "a1 = 5, an = 3, n = 20 \r<BR>\n" );
document.write( "\n" );
document.write( "a1 = 7, d = - 3, n = 20 \r<BR>\n" );
document.write( "\n" );
document.write( "a1 = 81, an = - 13, n = 20 \r<BR>\n" );
document.write( "\n" );
document.write( "a1 = 5, d = 7, n = 120 \r<BR>\n" );
document.write( "\n" );
document.write( "an = 5, d = -2, n = 12 \r<BR>\n" );
document.write( "\n" );
document.write( "In exercises 6-7, find the first term of the arithmetic sequence having the data given. \r<BR>\n" );
document.write( "\n" );
document.write( "an = 48, Sn = 546, n = 26 \r<BR>\n" );
document.write( "\n" );
document.write( "Sn = 781, d = 3, n = 22 \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #21296 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=21296\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a1 = 5, an = 3, n = 20 \r<BR>\n" );
document.write( "\n" );
document.write( "Your notation is a bit confusing.<BR>\n" );
document.write( "a1 means the 1st term of the series = 3<BR>\n" );
document.write( "You are summing the 1st 20 terms; correct?<BR>\n" );
document.write( "What do you mean by an=3 ?<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );