Value of $\sqrt[4]{(81)^{-2}}$ is
$\frac{1}{3}$
$\frac{1}{81}$
$9$
$\frac{1}{9}$
Which of the following is equal to $x$?
Express $3 . \overline{5}$ in the $\frac{p}{q}$ form.
Rationalise the denominator of the following: $\frac{\sqrt{40}}{\sqrt{3}}$
Express $0 . \overline{27}$ in the $\frac{p}{q}$ form.
State whether each of the following statements is true or false
$\sqrt{49}$ is an irrational number.