Mary performs this calculation (3.0)(2.0). Her answer have two significant figure.
Hence, option B is correct answer.
What is Significant Figure ?
Significant Figure is used to identify a number that is presented in the form of digits.
What are some rules for significant figures ?
- All the non-zero digits are significant. Example 186452 has six significant digit.
- Every zeros which occur between the any two non-zero digits are significant. Example 102.0065 has seven significant digits.
- Every zeros which are on right of a decimal point and left of a non-zero is never significant. Example 0.00654 has three significant digits.
- Every zero which are right of a number is significant. Example 5.0 has two significant digits.
Mary perform this calculation (3.0) (2.0) and get the result 6.0 which has 2 significant digits.
Thus, from above conclusion we can say that Mary performs this calculation (3.0)(2.0). Her answer have two significant figure.
Hence, option B is correct answer.
Learn more about the Significant Figures here: https://brainly.com/question/24491627
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