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OpenStudy (anonymous):
Rationalize the denominator of \[\sqrt{245x ^{3}y ^{7}}\div \sqrt{5xy ^{8}}\] Assume that all variables are positive A. \[49x ^{4}\sqrt{y}\div y\] B.\[7x \sqrt{y}\div y\] C. \[\sqrt{1225x ^{4}y ^{15}}\div \sqrt{5xy ^{8}}\] D.\[\sqrt{49x ^{2}}\div \sqrt{y}\]
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