Answer:
0.2 x 10⁻⁴
Explanation:
The problem here is to evaluate:
(1.8 x 10⁻²) ÷ (9 x 10²)
To solve this problem, some certain rules of indices must be followed. In the event that we have an expression such as:
(a x bˣ ) ÷ (c x bᵃ) = [tex]\frac{a}{c}[/tex] x bˣ⁻ᵃ
So;
(1.8 x 10⁻²) ÷ (9 x 10²) = [tex]\frac{1.8}{9}[/tex] x 10⁻²⁻²
= 0.2 x 10⁻⁴
