document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154282>Question 1154282</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the sum of the geometric sequence −3, 15, −75, 375, … when there are 7 terms and select the correct answer below.\r<BR>\n" );
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document.write( "the options are:<BR>\n" );
document.write( "A) -39,063<BR>\n" );
document.write( "B) 39,063<BR>\n" );
document.write( "C) 58,593<BR>\n" );
document.write( "D) -58,593\r<BR>\n" );
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document.write( "if you can, please include a thorough explanation!!! thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #776701 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10551)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=776701\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the sum of the geometric sequence −3, 15, −75, 375, … when there are 7 terms and select the correct answer below.\r<BR>\n" );
document.write( "\n" );
document.write( "the options are:<BR>\n" );
document.write( "A) -39,063<BR>\n" );
document.write( "B) 39,063<BR>\n" );
document.write( "C) 58,593<BR>\n" );
document.write( "D) -58,593\r<BR>\n" );
document.write( "\n" );
document.write( "if you can, please include a thorough explanation!!! thanks!<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">Use the formula for the sum of a GP: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C3%2C+S%5Bn%5D%2C+%22=%22%2C+a%5B1%5D%281+-+r%5En%29%2F%281+-+r%29%29 ALIGN=MIDDLE  ALT=\"matrix%281%2C3%2C+S%5Bn%5D%2C+%22=%22%2C+a%5B1%5D%281+-+r%5En%29%2F%281+-+r%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%281+-+%28-+5%29%5E7%29%29%2F%281+-+-+5%29%29 ALIGN=MIDDLE  ALT=\"matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%281+-+%28-+5%29%5E7%29%29%2F%281+-+-+5%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---- Substituting <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%283%2C3%2C+7%2C+for%2C+n%2C+-+3%2C+for%2C+a%5B1%5D%2C+-+5%2C+for%2C+r%29 ALIGN=MIDDLE  ALT=\"matrix%283%2C3%2C+7%2C+for%2C+n%2C+-+3%2C+for%2C+a%5B1%5D%2C+-+5%2C+for%2C+r%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%281+-+%28-+%2278%2C125%22%29%29%29%2F%281+%2B+5%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%281+%2B+%2278%2C125%22%29%29%2F6%29 ALIGN=MIDDLE  ALT=\"matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%281+%2B+%2278%2C125%22%29%29%2F6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%28%2278%2C126%22%29%29%2F6%29 ALIGN=MIDDLE  ALT=\"matrix%281%2C3%2C+S%5B7%5D%2C+%22=%22%2C+%28-+3%28%2278%2C126%22%29%29%2F6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "Sum of the 7 GP terms, or: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28matrix%281%2C5%2C+S%5B7%5D%2C+%22=%22%2C+-+3%28%2213%2C021%22%29%2C+%22=%22%2C+highlight%28-+%2239%2C063%22%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );