03-09-2018
Mathematics

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I am having trouble understanding square roots . help please
[tex] \sqrt{81.49 \\ [/tex]

Respuesta :

03-09-2018

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

[tex] \sqrt{81 \cdot 49} = \sqrt{9 \cdot 9 \cdot 7 \cdot 7} = \sqrt{63 \cdot 63} = 63[/tex]

Answer: 63

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