Evaluate
\frac{20\sqrt{7}}{7}\approx 7.55928946
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\frac{20\sqrt{7}}{7}
Factor 2800=20^{2}\times 7. Rewrite the square root of the product \sqrt{20^{2}\times 7} as the product of square roots \sqrt{20^{2}}\sqrt{7}. Take the square root of 20^{2}.
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