Question

Find the cube and match it properly.

• A. 2.197
• B. $\frac{-27}{125}$
• C. 512
• D. 0.000064

Answer 1

${1.3}^3$$=1.3\times 1.3\times 1.3$= 2.197
$=\frac{13}{10}\times \frac{13}{10}\times \frac{13}{10}$
$=\frac{2197}{1000}$
$=2.197$
$(\frac{-3}{5}{)}^3=(\frac{-3}{5})\times (\frac{-3}{5})\times (\frac{-3}{5})$
$=(-1\times \frac{3}{5})\times (-1\times \frac{3}{5})\times (-1\times \frac{3}{5})$
$=(-1{)}^3\times (\frac{3}{5}{)}^3$
$=\frac{-27}{125}$

$8^3=8\times 8\times 8=512$

${0.04}^3=0.04\times 0.04\times 0.04$
$=\frac{4}{100}\times \frac{4}{100}\times \frac{4}{100}$
$=\frac{64}{1000000}$
$=0.000064$