Question
Find the cube of:
$-\frac{8}{11}$
$-\frac{8}{11}$
✓
Answer
$\because\Big(\frac{\text{m}}{\text{n}}\Big)^3=\frac{\text{m}^3}{\text{n}^3}$
$\therefore\Big(-\frac{8}{11}\Big)^3= \Big(\frac{8^3}{11^3}\Big)$
$ =\Big(\frac{8\times8\times8}{11\times11\times11}\Big)=\frac{512}{131}$
$\therefore\Big(-\frac{8}{11}\Big)^3= \Big(\frac{8^3}{11^3}\Big)$
$ =\Big(\frac{8\times8\times8}{11\times11\times11}\Big)=\frac{512}{131}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Solve Cryptarithms.
$\ \ \ \ \ \ \ \ \ \ \text{A}\ \ \ \ 1\\ \ \ \ \ \underline{+\ \ \ 1\ \ \ \ \text{B}\ }\\\ \ \ \ \ {\ \ \ \ \ \text{B}\ \ \ \ 0\ }$
→$\ \ \ \ \ \ \ \ \ \ \text{A}\ \ \ \ 1\\ \ \ \ \ \underline{+\ \ \ 1\ \ \ \ \text{B}\ }\\\ \ \ \ \ {\ \ \ \ \ \text{B}\ \ \ \ 0\ }$
Express the following as decimal fractions:
6.3%
6.3%
Define the following term:
Frequency distribution.
Frequency distribution.
Is subtraction associative on rational numbers?
Which of the following expressions are not polynomials.
$3\text{y}^3-\sqrt{5}\text{y}+9$
→$3\text{y}^3-\sqrt{5}\text{y}+9$
Find the cube of:
2.1
2.1
Classify the following curve as open or closed:
Write the following as percent:
3 : 25
3 : 25
Fill in the blanks.
If A's one day's work is $\frac{3}{20},$ then A can finish the whole work in ______ days.
→If A's one day's work is $\frac{3}{20},$ then A can finish the whole work in ______ days.
Express of the following rational numbers with a negative exponent:
$\bigg[\Big(\frac{3}{2}\Big)^4\bigg]^{-3}$
→$\bigg[\Big(\frac{3}{2}\Big)^4\bigg]^{-3}$