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kadence
11-08-2013, 04:30 AM
Which of the following is equal to \sqrt{\frac{4}{7}}?

(A) \frac{2}{7}

(B) \frac{2\sqrt{7}}{7}

(C) \frac{4}{\sqrt{7}}

(D) \frac{4\sqrt{7}}{7}

(E) \frac{16}{49}

Thanks!;)

elizabeth
11-08-2013, 04:30 AM
This number can be written as \frac{\sqrt4}{\sqrt7}}=\frac{2}{\sqrt{7}}=\frac{2\ sqrt{7}}{7}

Therefore the correct answer is (B).

kadence
11-08-2013, 04:33 AM
Thanks Elisabeth!