A classmate claims that the number 100 has three significant figures. Are they correct and why or why not?

A. Yes, the classmate is correct because you always count zeros after a non-zero digit.
B. No, the classmate is not correct because you never count zeros after a non-zero digit.
C. Yes, the classmate is correct because you count the number of digits in the number.
D. No, the classmate is not correct because you don't count the trailing zeros if there isn't a decimal.



Answer :

Final answer:

The number 100 has one significant figure due to the trailing zeros without a decimal point.


Explanation:

Significant figures are digits in a number that carry meaning contributing to its precision. In the case of the number 100, it has one significant figure because trailing zeros without a decimal point are not significant.


Learn more about Significant Figures here:

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