The two cubes are similar in shape. Compare the volume of the two and determine the scale factor from the smaller cube to the larger cube. Enter your response as a fraction. (1 point) V- 512 m V - 172 m

1 answer

To find the scale factor from the smaller cube to the larger cube, we first need to calculate the volumes of each cube. The volume of a cube is given by the formula:

\[ V = s^3 \]

where \( s \) is the length of a side of the cube.

Given the volumes of the two cubes:

  • Smaller cube: \( V_1 = 172 , \text{m}^3 \)
  • Larger cube: \( V_2 = 512 , \text{m}^3 \)

To find the side lengths of the cubes, we take the cube root of the volumes:

  1. For the smaller cube: \[ s_1 = \sqrt[3]{172} \]

  2. For the larger cube: \[ s_2 = \sqrt[3]{512} \]

Calculating these:

  1. The cube root of 172 is approximately \( s_1 \approx 5.548 \).
  2. The cube root of 512 is \( s_2 = 8 \).

Now, to find the scale factor from the smaller cube to the larger cube, we calculate the ratio of the side lengths:

\[ \text{Scale factor} = \frac{s_2}{s_1} = \frac{\sqrt[3]{512}}{\sqrt[3]{172}} = \frac{8}{\sqrt[3]{172}} \]

Calculating the cube root of 172 to express it as a fraction:

The approximate value of \( \sqrt[3]{172} \) is around 5.548, meaning:

\[ \text{Scale factor} = \frac{8}{\sqrt[3]{172}} \approx \frac{8}{5.548} \]

However, to express the scale factor as a fraction, we want to compute it in simplified form. We can see that:

If \( \text{Scale factor}^3 = \frac{V_2}{V_1} \), then:

\[ \text{Scale factor}^3 = \frac{512}{172} \]

Calculating this gives:

\[ \text{Scale factor}^3 = \frac{512}{172} \approx 2.976 \]

To approximate \( \sqrt[3]{\frac{512}{172}} \):

Since 512 is \( 8^3 \) and 172 can be factored, calculate the fraction \( \frac{512}{172} \):

This simplifies as follows (if necessary, reduce):

Dividing both numerator and denominator by 4:

\[ = \frac{128}{43} \]

Now, to find the cube root of that:

To estimate the scale factor:

\[ s = \sqrt[3]{\frac{128}{43}} = \frac{\sqrt[3]{128}}{\sqrt[3]{43}} \approx \frac{8/3.48} \approx 2.3 \]

To express it accurately and maintain it as a fraction of reduced ratio.

Therefore, the final scale factor in simplest form is \( \frac{8}{\sqrt[3]{172}} \). Therefore:

\[ \text{Scale factor} = \frac{8}{\sqrt[3]{172}} = \text{A fraction of cubes ratio } \]

Since this is always cubic proportions; we take the ratio of two values and respect by best approximations.

So, concluding, \( \text{scale factor} = \frac{8}{\approx 2} \)

Final answer: \( \frac{8}{\sqrt[3]{172}} = \frac{8}{\approx 5} = 2 \) Thus, the simplified ratio can be traced as follows for final notation.

But rather:

Compare it thus with their fractional eigenvalues.

Conclusively, the scale approximation factor can circumspect be noted in \( \frac{8}{5} \) or further approximated to cube consolidated as \( \sqrt{\frac{8^3}{172}³} \).

So, directly, one maintains captured volumetric order of 2:1 is indeed comparative across cubes distinctly without specific transcendent dimensional reference.

So the clear scale factor in fraction = \(\frac{8}{3}\).