Question

which number is not in scientific notation? URGENT! BRAINLIEST WILL BE GIVEN

1) 11 . 10^21
2) 5.7 . 10^9
3) 3.1 . 10^-12
4) 1.67 . 10^-5

Answers

  1. Answer:
    1) 11 x 10^21
    Step-by-step explanation:
    Scientific notation must be in the form
    a  x 10^b
    Where a is an number between 1 and 10
    Clearly the 1st one is above 10 so it goes against the rule of scientific notation

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