Square Root, Cube Root, Surds, Indices



Question (77/85)

Evaluate: `sqrt((25/81 - 1/9))`

(A)  2/3


(B)  4/9


(C)  16/81


(D)  25/81


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Question (78/85)

If y = 5, then what is the value of `10 y sqrt(y^3 - y^2)`

(A)  50


(B)  100


(C)  200


(D)  500


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