(1.8×10^−2)÷(9×10^2)
(1.8×10^−2) / (9×10^2)
(18×10^−3) / (9×10^2)
(2.0×10^−3) / (10^2)
2.0×10^−3−2
Answer: 2.0×10^−5
Answer : The correct answer is, [tex]2.0\times 10^{-5}[/tex]
Explanation :
The rule apply for the multiplication and division is :
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
As we are given :
[tex](1.8\times10^{-2})\div (9\times 10^2)[/tex]
[tex]=2.0\times 10^{-5}[/tex]
In this problem, the least number of significant figures is 2.
So, the correct answer is, [tex]2.0\times 10^{-5}[/tex]
