Questions: Express the answers to the following operations with the proper number of significant figures. A. 1.2 × 1.216 B. 3.000 / 2.0 C. (1.201 × 10^3) × (1.2 × 10^-2) D. 1.6+1.15 E. (41.314-41.03) × 1.23 F. 1.8+1.022+0.001 G. (0.050-0.0012) × (3.0-2.495)

Express the answers to the following operations with the proper number of significant figures.
A. 1.2 × 1.216
B. 3.000 / 2.0
C. (1.201 × 10^3) × (1.2 × 10^-2)
D. 1.6+1.15
E. (41.314-41.03) × 1.23
F. 1.8+1.022+0.001
G. (0.050-0.0012) × (3.0-2.495)
Transcript text: 5. Express the answers to the following operations with the proper number of significant figures. A. $1.2 \times 1.216$ B. $3.000 / 2.0$ C. $\left(1.201 \times 10^{3}\right) \times\left(1.2 \times 10^{-2}\right)$ D. $1.6+1.15$ E. $(41.314-41.03) \times 1.23$ F. $1.8+1.022+0.001$ G. $(0.050-0.0012) \times(3.0-2.495)$
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Solution

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Solution Steps

Step 1: Multiplication with Significant Figures

For part A, we need to multiply \(1.2\) by \(1.216\). The number with the fewest significant figures is \(1.2\) (2 significant figures).

\[ 1.2 \times 1.216 = 1.4592 \]

Rounding to 2 significant figures:

\[ \boxed{1.5} \]

Step 2: Division with Significant Figures

For part B, we need to divide \(3.000\) by \(2.0\). The number with the fewest significant figures is \(2.0\) (2 significant figures).

\[ \frac{3.000}{2.0} = 1.5 \]

Rounding to 2 significant figures:

\[ \boxed{1.5} \]

Step 3: Multiplication with Scientific Notation

For part C, we need to multiply \((1.201 \times 10^{3})\) by \((1.2 \times 10^{-2})\). The number with the fewest significant figures is \(1.2\) (2 significant figures).

\[ (1.201 \times 10^{3}) \times (1.2 \times 10^{-2}) = 1.4412 \times 10^1 = 14.412 \]

Rounding to 2 significant figures:

\[ \boxed{14} \]

Final Answer

A. \(\boxed{1.5}\)

B. \(\boxed{1.5}\)

C. \(\boxed{14}\)

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