document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=96539>Question 96539</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618250204/algebrahomeworkh>algebra 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Word problem:You are creating a window display at a toy store using wooden blocks. The display involves stacking blocks in triangular forms. You begin the display with 1 block, which is your first \"triangle,\" and then stack 3 blocks, two on the bottom and one on the top, to get the next triangle. YOu create the next three triangles by stacking 6 blocks, then 10 blocks, and then 15 blocks. HOw many blocks will you need for the ninth triangle. \r<BR>\n" );
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document.write( "I need to make an equation to figure out how many blocks are needed to make the ninth triganle. I know the answer is 45 blocks, but I don't understand how to create the equation with the appropriate variables.\r<BR>\n" );
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document.write( "I made an input, output chart to try and figure out the correct equation, but i just couldn't figure it out.   \r<BR>\n" );
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document.write( "This is due by tommorrow. I will continue to work on it until, i get a response from you. <BR>\n" );
document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #70304 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=70304\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Word problem:You are creating a window display at a toy store using wooden blocks. The display involves stacking blocks in triangular forms. You begin the display with 1 block, which is your first \"triangle,\" and then stack 3 blocks, two on the bottom and one on the top, to get the next triangle. YOu create the next three triangles by stacking 6 blocks, then 10 blocks, and then 15 blocks. HOw many blocks will you need for the ninth triangle. \r<BR>\n" );
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document.write( "I need to make an equation to figure out how many blocks are needed to make the ninth triganle. I know the answer is 45 blocks, but I don't understand how to create the equation with the appropriate variables.\r<BR>\n" );
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document.write( "I made an input, output chart to try and figure out the correct equation, but i just couldn't figure it out. <BR>\n" );
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document.write( "f(x)= (x^2+x)/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  \r<BR>\n" );
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document.write( " </SPAN>\n" );
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