02-04-2016
Mathematics

contestada

Which of these pairs of numbers differ by 495 when they are squared? Choices:A.17 and 19 B:21 and 30 C.27 and 18 ,or D.23 and 32

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Pomster171 Pomster171

03-04-2016

The answer is B because 30^2 - 21^2 = 495

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