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Which number is not written in scientific notation

Which number is not written in scientific notation-example-1

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4 votes

Answer:

Hey there!

e15 times 10^20 isn't written in scientific notation. For a number to be in scientific notation, the leading number must be between 1 and 10.

Let me know if this helps :)

User Cristian T
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5 votes

Answer:

D. 15x10^20

Explanation:

The rule for scientific notation is that the coefficient has to be between 1 and less than 10. This means there is only one digit in front of the decimal. 15x10^20 should be written as 1.5x10^21 to follow the rule.

User Raidri
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