1. Move the decimal point: Start by moving the decimal point to the right until you have a number between 1 and 10. In this case, we need to move the decimal point five places to the right.
2. Count the moves: We moved the decimal point five places to the right. This tells us the power of 10 will be -5.
3. Write in scientific notation: The result is 2.8 x 10⁻⁵
Therefore, the power of 10 when 0.000028 is written in scientific notation is -5.
