Question
The cube root of .000216 is:
Answer: Option B
$$\eqalign{
& {\left( {.000216} \right)^{\frac{1}{3}}} = {\left( {\frac{{216}}{{{{10}^6}}}} \right)^{\frac{1}{3}}} \cr
& = {\left( {\frac{{6 \times 6 \times 6}}{{{{10}^2} \times {{10}^2} \times {{10}^2}}}} \right)^{\frac{1}{3}}} \cr
& = \frac{6}{{{{10}^2}}} \cr
& = \frac{6}{{100}} \cr
& = 0.06 \cr} $$
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$$\eqalign{
& {\left( {.000216} \right)^{\frac{1}{3}}} = {\left( {\frac{{216}}{{{{10}^6}}}} \right)^{\frac{1}{3}}} \cr
& = {\left( {\frac{{6 \times 6 \times 6}}{{{{10}^2} \times {{10}^2} \times {{10}^2}}}} \right)^{\frac{1}{3}}} \cr
& = \frac{6}{{{{10}^2}}} \cr
& = \frac{6}{{100}} \cr
& = 0.06 \cr} $$
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