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If nA=75%, nB=80%, nA∩B=350 and nA∪B=15%, find nU, the total number of elements.

By Arianna

If nA=75%, nB=80%, nA∩B=350 and nA∪B=15%, find nU, the total number of elements.

About the author
Arianna

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Express the following numbers in standard form

(a) 71200000​

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