Jharne De and Ranjana Kumar Solutions for Chapter: Exponents or Powers, Exercise 3: Work It Out

Find the value of ${\left(50\right)}^{-3}÷{\left(50\right)}^{-2}$

Evaluate: ${\left(11\right)}^{\frac{3}{4}}÷{\left(11\right)}^{\frac{-1}{4}}$

Find $m$, if:

${\left[{\left(\frac{2}{13}\right)}^{-3}\right]}^m={\left(\frac{2}{13}\right)}^m÷{\left(\frac{2}{13}\right)}^1$

Simplify: ${\left(8^2\times 5^4\right)}^{\frac{1}{2}}$

Evaluate: ${\left(2^4\right)}^{\frac{3}{4}}+{\left(3^5\right)}^{\frac{2}{5}}$

Find the value of ${\left[{\left(\frac{13}{27}\right)}^{-1}\right]}^2$.

Find $x$, if:

$x^7÷x^4=-\frac{125}{216}$

The number of bacteria in a certain culture is $49,60,00,00,000$. Write this in standard form?