WindsorLynne WindsorLynne

09-08-2018
Mathematics

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Simplify, choosing the correct answer as a mixed number in lowest terms.

sqrt of 400/49

Respuesta :

09-08-2018

[tex]\sqrt{\dfrac{400}{49}}=\dfrac{\sqrt{400}}{\sqrt{49}}=\dfrac{20}{7}=2\dfrac{6}{7}\\\\\text{Used}\ \sqrt{\dfrac{a}{b}}=\dfrac{\sqrt{a}}{\sqrt{b}}[/tex]

[tex]\sqrt{400}=20\ \text{because}\ 20^2=400\\\\\sqrt{49}=7\ \text{because}\ 7^2=49[/tex]

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