The result after adding 3.8xx10^(-6) to 4.2xx10^(-5) with due regard to significant figures is

The result after adding 3.8xx10^(-6) to 4.2xx10^(-5) with due regard t

1.	The result after adding 3.8xx10^(-6) to 4.2xx10^(-5) with due regard to significant figures is
Answer» `4.85xx10^(-5)` `0.458xx10^(-4)` `4.6xx10^(-5)` `45.8xx10^(-6)` ANSWER :C