document.write( "Question 490296: can you please help me?
\n" ); document.write( "show all work, a disk jockey has 9 songs to play. 5 are slow, and 4 are fast. each song is to be played only once. in how many ways can the disc jockey play the 9 songs if:
\n" ); document.write( "-the songs can be played in any order
\n" ); document.write( "- the first two songs must be fast \n" ); document.write( "
Algebra.Com's Answer #333972 by stanbon(75887)\"\" \"About 
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a disk jockey has 9 songs to play. 5 are slow, and 4 are fast. each song is to be played only once.
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\n" ); document.write( "In how many ways can the disc jockey play the 9 songs if:
\n" ); document.write( "-the songs can be played in any order
\n" ); document.write( "Ans: 9! = 362,880 ways
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\n" ); document.write( "\n" ); document.write( "- the first two songs must be fast\r
\n" ); document.write( "\n" ); document.write( "4C2 = 6 ways to select 2 fast songs
\n" ); document.write( "2 ways to order the 2 fast songs selected
\n" ); document.write( "7! ways to arrange the remaining 7 songs
\n" ); document.write( "Ans: 6*2*7! = 60,480 ways
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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