High School

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Perform this calculation to the correct number of significant figures:

\[ 78.222 \times (12.02 - 11.52) \]

A) 39

B) 39.1

C) 39.11

D) 39.111

Answer :

Final answer:

To perform the calculation with the correct number of significant figures, determine the least number of significant figures in the given numbers. Perform the calculation and round the answer to the correct number of significant figures.

Explanation:

To perform the calculation with the correct number of significant figures, we need to determine the least number of significant figures in the given numbers. In this case, the number with the least number of significant figures is 11.52, which has four significant figures. So, we perform the calculation as follows:

78.222 x (12.02 - 11.52) = 78.222 x 0.50 = 39.111

Rounding the answer to the correct number of significant figures, we get 39.11, which corresponds to option C).

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