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Put the following four numbers in order from least to greatest: $A.\ 4 \cdot \sqrt{5}\\ B.\ 6 \cdot \sqrt{2}\\ C.\ 5 \cdot \sqrt{3}\\ D.\ 9$

 Nov 12, 2020
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Method 1:  Turn them all into approximate decimals using your calculator, then order them.

 

Method 2:  Change them so each one is total inside a square root. Then order them

e.g.   6sqrt2 = sqrt (36*2) = sqrt (72)

 Nov 12, 2020

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