QuestionAugust 26, 2025

Using your calculator, answer each problem below. Be sure to use the proper number of significant figures. square (2.0e3)(3.42e-2) square 3.456/1.3e3 square 0.1765/(10.32-9.45)

Using your calculator, answer each problem below. Be sure to use the proper number of significant figures. square (2.0e3)(3.42e-2) square 3.456/1.3e3 square 0.1765/(10.32-9.45)
Using your calculator, answer each problem below. Be sure to use the proper number of
significant figures.
square  (2.0e3)(3.42e-2)
square  3.456/1.3e3
square  0.1765/(10.32-9.45)

Solution
4.2(208 votes)

Answer

6.8 \times 10^1 ### 2.7 \times 10^{-3} ### 0.203 Explanation 1. Multiply Numbers with Scientific Notation Calculate (2.0 \times 10^3) \times (3.42 \times 10^{-2}) = 6.84 \times 10^1. The result should have two significant figures. 2. Divide Numbers with Scientific Notation Calculate 3.456 / (1.3 \times 10^3) = 2.66 \times 10^{-3}. The result should have two significant figures. 3. Subtract and Divide First, calculate the subtraction: 10.32 - 9.45 = 0.87. Then divide: 0.1765 / 0.87 = 0.203. The result should have three significant figures.

Explanation

1. Multiply Numbers with Scientific Notation<br /> Calculate $(2.0 \times 10^3) \times (3.42 \times 10^{-2}) = 6.84 \times 10^1$. The result should have two significant figures.<br /><br />2. Divide Numbers with Scientific Notation<br /> Calculate $3.456 / (1.3 \times 10^3) = 2.66 \times 10^{-3}$. The result should have two significant figures.<br /><br />3. Subtract and Divide<br /> First, calculate the subtraction: $10.32 - 9.45 = 0.87$. Then divide: $0.1765 / 0.87 = 0.203$. The result should have three significant figures.
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