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How would you express the number 0.0009 in scientific notation?
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How would you express the number 0.0009 in scientific notation?

User Thomas Lotze
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To write a number in scientific notation: Put the decimal after the first digit and drop the zeroes. To find the exponent count the number of places from the decimal to the end of the number.

so 9 x 10-4
User AffluentOwl
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9x10^-4

this is the correct answer.
User MatlabDoug
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