document.write( "Question 42221: Which of of numbers are opposites?\r
\n" ); document.write( "\n" ); document.write( "A) x and x^-1\r
\n" ); document.write( "\n" ); document.write( "B) 2 and -2\r
\n" ); document.write( "\n" ); document.write( "C)12 and 21\r
\n" ); document.write( "\n" ); document.write( "D) 2 and 1/2
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Algebra.Com's Answer #27343 by fractalier(6550)\"\" \"About 
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Choice B.
\n" ); document.write( "2 and -2 are additive inverses, and thus opposites.
\n" ); document.write( "It should be noted that choice D are a pair of multiplicative inverses and could also be construed as opposites in a multiplicative sense.
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