Final answer:
To determine how many times 8 x 10⁻³ is as great as 4 x 10⁻⁶, we can divide the two numbers. The answer is 2 x 10⁻³.
Step-by-step explanation:
Calculating the ratio between 8 x 10⁻³ and 4 x 10⁻⁶ involves dividing these values. Dividing 8 x 10⁻³ by 4 x 10⁻⁶ results in 2 x 10⁻³. This computation indicates that 8 x 10⁻³ is equivalent to 2 x 10⁻³ times the value of 4 x 10⁻⁶. Understanding the relationship between these numbers in scientific notation illuminates that the former is precisely 2 x 10⁻³ times larger than the latter. This methodical division unveils the comparative magnitude between these quantities expressed in exponential form, providing insight into their relative sizes.