Question

cube root of -1 217/512 is​

Answer 1

Answer:

-9/8

Step-by-step explanation:

9 x 9 x 9 = 729

8 x 8 x 8 = 512

cube root = - 9/8

Answer 2

Answer:

Cube root of $-\frac{1217}{512}$ is $-1.33$

Step-by-step explanation:

Given: $-\frac{1217}{512}$

To find cube root.

Cube root of $-\frac{1217}{512}$ is $(-\frac{1217}{512})^{\frac{1}{3} }$.

$(-\frac{1217}{512})^{\frac{1}{3} }=(-\frac{1217}{8^{3} })^{\frac{1}{3} }$

But there is no number of which $1217$ is perfect cube so we take it's approximate value.

$\sqrt[3]{-1217}\approx-10.68$

Hence, $(-\frac{1217}{8^{3} })^{\frac{1}{3} }=-\frac{10.68}{8}$

                            $=-1.33$

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