document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1107368>Question 1107368</A>: <I><SPAN STYLE=\"word-break: break-all;\"> &#8203;Pamela's computer printer allows for optional settings with a panel of four &#8203;on-off switches in a row. How many different settings can she select if at least one switch must be on? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #722421 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=722421\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pamela's computer printer allows for optional settings with a panel of four on-off switches in a row. How many different settings can she select if at least one switch must be on?<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "1 = On<BR>\n" );
document.write( "0 = Off<BR>\n" );
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document.write( "2^4 = 16 combinations.<BR>\n" );
document.write( "Only 0000 is not allowed.<BR>\n" );
document.write( "--> 15 different settings<BR>\n" );
document.write( " </SPAN>\n" );
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