christopherramo2 christopherramo2

02-11-2017
Mathematics

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Which expression represents the change from a $20 bill when you purchase an item that costs d dollars

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02-11-2017

expression that represents the change from $20 after the purchase of an item that costs d dollars is:
20-d

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(1-cos^2x)(1+tan^2x)=tan^2x