Answer: 0.0000084
There are 5 zeros between the decimal point and the '8'
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Explanation:
Move the decimal point 6 spots to the left to go from 8.4 to 0.0000084
There are 5 zeros between the decimal point and the '8'. Each zero digit mentioned represents one move to the left. That sixth move is due to the '8' itself.
Check out the diagram below.
