We know that 3√0.729

5 answers

To find \( \sqrt[3]{0.729} \), we can express 0.729 as a fraction or in a simpler form.

We know that: \[ 0.729 = \frac{729}{1000} \]

Next, we can find the cube root of both the numerator and the denominator: \[ \sqrt[3]{0.729} = \sqrt[3]{\frac{729}{1000}} = \frac{\sqrt[3]{729}}{\sqrt[3]{1000}} \]

Calculating both cubic roots, we have: \[ \sqrt[3]{729} = 9 \quad \text{(since \( 9^3 = 729 \))} \] \[ \sqrt[3]{1000} = 10 \quad \text{(since \( 10^3 = 1000 \))} \]

Therefore: \[ \sqrt[3]{0.729} = \frac{9}{10} = 0.9 \]

Thus, the final result is: \[ \sqrt[3]{0.729} = 0.9 \]

find the value of √25

The value of \( \sqrt{25} \) is \( 5 \), because \( 5 \times 5 = 25 \).

√400

The value of \( \sqrt{400} \) is \( 20 \) because \( 20 \times 20 = 400 \).