document.write( "Question 1092320: A summer reading list contains 15 titles. In how many ways can 5 titles be chosen from the list? \n" ); document.write( "
Algebra.Com's Answer #706923 by ikleyn(52784)\"\" \"About 
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document.write( "If the order in your selection does matter, then the answer is 15*14*13*12*11 = 360360 ways.\r\n" );
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document.write( "If the order of books does not matter, then the answer is \"C%5B15%5D%5E5\" = \"%2815%2A14%2A13%2A12%2A11%29%2F%281%2A2%2A3%2A4%2A5%29\" = 3003 ways.\r\n" );
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\n" ); document.write( "\n" ); document.write( "On permutations and combinations see the lessons \r
\n" ); document.write( "\n" ); document.write( "    - Introduction to Permutations\r
\n" ); document.write( "\n" ); document.write( "    - PROOF of the formula on the number of Permutations\r
\n" ); document.write( "\n" ); document.write( "    - Problems on Permutations\r
\n" ); document.write( "\n" ); document.write( "    - Introduction to Combinations\r
\n" ); document.write( "\n" ); document.write( "    - PROOF of the formula on the number of Combinations\r
\n" ); document.write( "\n" ); document.write( "    - Problems on Combinations\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic  \"Combinatorics: Combinations and permutations\". \r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "into your archive and use when it is needed.\r
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