document.write( "Question 211499This question is from textbook McDougal Littel Math Course 1
\n" ); document.write( ": You are going to plant three trees in your neighborhood. You can choose from apple, maple, oak, poplar and spruce. Make a list to show how many ways you can choose a group of three different trees. \n" ); document.write( "

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5
\n" ); document.write( "C =5!/3!(5-3)!=120/6*2=120/12=10
\n" ); document.write( " 3
\n" ); document.write( "apple maple oak
\n" ); document.write( "apple maple poplar
\n" ); document.write( "apple maple spruce
\n" ); document.write( "apple oak poplar
\n" ); document.write( "apple oak spruce
\n" ); document.write( "apple poplar spruce
\n" ); document.write( "maple oak poplar
\n" ); document.write( "maple oak spruce
\n" ); document.write( "maple poplar spruce
\n" ); document.write( "oak poplar spruce \n" ); document.write( "

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