document.write( "Question 373294: 8. In your political science class you are given a list of 10 books. You are to select 4 to read during the semester. How many different combinations of 4 books are available from the list of 10? \n" ); document.write( "
Algebra.Com's Answer #265730 by edjones(8007)\"\" \"About 
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10C4
\n" ); document.write( "=10!/((10-4)!4!)
\n" ); document.write( "=10*9*8*7*6!/6!*4*3*2
\n" ); document.write( "=10*9*8*7/4*3*2
\n" ); document.write( "=10*3*7
\n" ); document.write( "=210
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