Do the following calculation and express the answer using the correct number of significant figures. ______ = (1.21 × 10^{− 3} + 1.3 × 10^{− 3})× 6.453 × 10² A)1.619 B)2 C)1.6 D)1.62

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The calculation simplifies to (1.21 + 1.3) × 10^-3 × 6.453 × 10^2. This equals 2.51 × 10^-3 × 6.453 × 10^2 = 16.2. Since the least number of significant figures in the given numbers is 2 (in 1.3), the final answer should also be expressed with 2 significant figures, which is 1.6.

Do the Following Calculation and Express the Answer Using the Correct