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The volume of a cube is [tex]27n^{27}[/tex] cubic units. What is the length of one side of the cube?

A. [tex]3n^3[/tex] units
B. [tex]3n^9[/tex] units
C. [tex]27n^3[/tex] units
D. [tex]27n^9[/tex] units


Sagot :

To find the length of one side of a cube given its volume, we start with the formula for the volume of a cube:

[tex]\[ V = s^3 \][/tex]

where \( V \) is the volume and \( s \) is the side length.

Given that the volume of the cube is \( 27 n^{27} \) cubic units, we need to find \( s \) such that:

[tex]\[ s^3 = 27 n^{27} \][/tex]

To isolate \( s \), we take the cube root of both sides of the equation:

[tex]\[ s = \sqrt[3]{27 n^{27}} \][/tex]

We can simplify this step-by-step:
[tex]\[ 27 = 3^3 \][/tex]
[tex]\[ n^{27} = (n^9)^3 \][/tex]

Thus, combining these observations, the equation becomes:

[tex]\[ s = \sqrt[3]{(3^3 \cdot (n^9)^3)} \][/tex]

Taking the cube root simplifies it to:
[tex]\[ s = 3 \cdot n^9 \][/tex]

Therefore, the length of one side of the cube is:

[tex]\[ 3 n^9 \][/tex]

So, the correct answer is:

[tex]\[ 3 n^9 \text{ units} \][/tex]