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3 years ago

9

I am having trouble understanding square roots . help please

" id="TexFormula1" title=" \sqrt{81.49 \\ " alt=" \sqrt{81.49 \\ " align="absmiddle" class="latex-formula">

1 answer:

postnew [5]3 years ago

5 0

I'm going to assume that's a multiplication not a decimal point.

$\sqrt{81 \cdot 49} = \sqrt{9 \cdot 9 \cdot 7 \cdot 7} = \sqrt{63 \cdot 63} = 63$

Answer: 63

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