Answer: 5.1x10^-4
Step 1: Rewrite number
0.00051
Step 2: Make the number smaller
0.00051 can be used in scientific notation once you move the decimal. The decimal needs to be moved so that the number is between 1 and 10. When moving the decimal 4 places to the right, the number can be left at 5.1.
Step 3: Write in standard form
The number on the left side of the multiplication side will be the number that we made smaller. In this case, it is 5.1. The exponent next to the 10 will be of how many places the decimal was moved. This is -4. The negative sign is used since the decimal was moved to the right.
5.1 x 10^-4
