Brainliest to the best answer

Answer: 1/7
Step by step:
First divide the 1/49 to get 0.02040816326530612244897959183673 then take the square root of that number to get 0.14285714285714285714285714285714. Then plug in the numbers which after that your answer 0.14285714285714285714285714285714 or 1/7.
Hope this helps...
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