samantha821111
samantha821111 samantha821111
  • 08-03-2017
  • Mathematics
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Help please ! I don't really understand

Help please I dont really understand class=

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1100325342 1100325342
  • 15-03-2017
Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?

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