The decimal number 0.0210 expressed in scientific notation is 2.10 × 10^-².

Question

Quizplus · Accepted Answer

To write a decimal number in scientific notation, we move the decimal point until there is only one non-zero digit to the left of the decimal point. The number of places the decimal point is moved becomes the exponent of 10. In this case, we move the decimal point to the right two places to get 2.10, and the exponent of 10 is 1. Therefore, the scientific notation for 0.0210 is 2.10 × 10^1. The rest of the options in the given answer format do not make sense and are likely a result of some formatting issues.

The Decimal Number 0