Question

Tell whether the number is written in scientific notation Explain.

$23 \times {10}^{9}$

Answer 1

yes, this number is written in scientific notation. to define, Scientific notation is a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so you can write large numbers using less digits. this expression satisfys the requirements.

Answer 2

No, it is not written correctly in scientific notation. The first number has to be between 1 and 10. It cannot be lower than 1 nor can it be higher than 10. So, the number is not written correctly.