document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308151>Question 308151</A>: <I><SPAN STYLE=\"word-break: break-all;\"> \"A true-false test contains 10 questions. In how many ways can a student answer the questions if some questions may be left unanswered?\"\r<BR>\n" );
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document.write( "I know that the number of answer combinations when answering each question is 2^10 = 1,024. I just am not sure how to incorporate the student not answering some. And I'm assuming that there is a possibility that the student will not answer any? The question is written exactly how I typed it. Thank you in advance! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220375 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220375\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> not answering is a third possibility, so 3^10 instead of 2^10 </SPAN>\n" );
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