exam Maths Puzzle Numerical Ability

The Surface Area of a Sphere is 86pie ft squared. What is the diameter of th sphere?

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exam Other Question

Please show me how to find the square root. Thanks!


19,683 and 1/3
^9
[ (y^2/3)(y^-5/6)]
-----------------------
[ (y^1/9) ]

(Hoping that reads correctly, but if I had to say it - it would read: y to
th