# SOLUTION: How would you express 0.000409 in scientific notation?

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 Click here to see ALL problems on decimal-numbers Question 21870: How would you express 0.000409 in scientific notation?Answer by Alwayscheerful(414)   (Show Source): You can put this solution on YOUR website!The first rule for scientific notation is that the number (significant figure) has to be between 1 and 10 So, your first number must be Then, you add the traditional Then count how many spaces to the right you moved the decimal. (4) Since you moved it to the right, your exponent after the 10 will be negative 4 So, your answer in scientific notation is Hope this helps!