document.write( "Question 304199: inhow many ways can a pair of co-captions be chosen from 10 tennis players? \n" ); document.write( "
Algebra.Com's Answer #217917 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
in how many ways can a pair of co-captions be chosen from 10 tennis players?
\n" ); document.write( "-----------
\n" ); document.write( "# of pairs = 10C2 = 45
\n" ); document.write( "==========================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" ); document.write( "
\n" );