document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1161854>Question 1161854</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Formula for (a): n(C)r=n!/r!(n-r)! How many 4-person committees can be formed out of a class of 15? I worked out 15C4=15!/(15-4)!4! that equals 15!(11)!4! and that is as far as I got. This formula comes from \"Combinations of n Objects Taken r at a Time.\"\r<BR>\n" );
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document.write( "(b) In how many ways can a 4-person committee be chosen? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #785487 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=785487\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ 15!\ =\ 15\ \times\ 14\ \times\ 13\ \times\ 12\ \times\ 11!\">, and\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ 4!\ =\ 4\ \times\ 3\ \times\ 2\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ \frac{15!}{11!\,\cdot\,4!}\ =\ \frac{15\ \times\ 14\ \times\ 13\ \times\ 12}{4\ \times\ 3\ \times\ 2}\  =\ \ 15\ \times\ 7\ \times\ 13\">\r<BR>\n" );
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document.write( "You can do the rest of the arithmetic.<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \ \\r\"> </SPAN>\n" );
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