document.write( "Question 42221: Which of of numbers are opposites?\r
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Algebra.Com's Answer #794121 by CoolRekt(53)\"\" \"About 
You can put this solution on YOUR website!
Choice B is correct. It's like changing something to a negative. A is wrong since it just changes the exponent, not the base. C is wrong since it just swaps the numbers backwards, not making it a negative. D is wrong because 2 cannot be opposites of a fraction (especially if it isn't a negative).\r
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