To write the number 0.00000648 in scientific notation, you need to express it in the form of \( a \times 10^n \), where \( 1 \leq a < 10 \) and \( n \) is an integer.
- Move the decimal point in 0.00000648 to the right until you have a number between 1 and 10. Moving the decimal point 6 places to the right gives you 6.48.
- Since you moved the decimal point to the right, this is equivalent to multiplying by \( 10^{-6} \).
So, the number in scientific notation is: \[ 6.48 \times 10^{-6} \]
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