document.write( "Question 1202245: 1a. Find the permutation from word ABRACADABRA
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document.write( "A. Total number of permutation of word ABRACADABRA
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document.write( "B. Begins with A
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document.write( "C. Begins with E and ends with R
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document.write( "D. Begins with A and ends with A
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document.write( "E. Does not begins with A
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Algebra.Com's Answer #836929 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " In this my post, I will solve (C) and will make a note about the rest.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "In (C), the answer is 0 (zero), since the letter \"E\" does not participate in the word \"ABRACADABRA\",\r\n" ); document.write( "\r\n" ); document.write( "as it is easily to see. \r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Regarding the use of the term \" permutations \", in problems with repeating letters\r\n" ); document.write( "\r\n" ); document.write( "usually use the term \"arrangements\" or \"distinguishable arrangements/permutations\" \r\n" ); document.write( "\r\n" ); document.write( "to avoid ambiguity and to make the language adequately correct, clean and accurate.\r\n" ); document.write( "\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As I see, the personal on the opposite side of the Internet intensively works every day \n" ); document.write( "to create their own problems on their own, without having knowledge on an appropriate/standard Math terminology.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "May be, it makes sense to consider hiring specialists to improve a quality of your production,\r \n" ); document.write( "\n" ); document.write( "which, without this preventive measure, remains at the alarmingly low level . . . \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You need a person (or even a team of specialists) that will edit EVERY your composition EVERY DAY, \r \n" ); document.write( "\n" ); document.write( "on the 24/7, or even 25/8 basis.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |