Answered

Total these measurements. Your answer should indicate the correct precision in significant figures.

[tex]\[
\begin{array}{r}
2.11 \, \text{mL} \\
5.83 \, \text{mL} \\
7.64 \, \text{mL} \\
10.5 \, \text{mL} \\
8.33 \, \text{mL} \\
\hline
\end{array}
\][/tex]

A. 34.4 mL

B. 34 mL

C. 34.41 mL

D. 34.0 mL



Answer :

GinnyAnswer
To find the total of the given measurements with the correct precision, follow these detailed steps:

1. List the Measurements:
- 2.11 mL
- 5.83 mL
- 7.64 mL
- 10.5 mL
- 8.33 mL

2. Sum the Measurements:
- Add all the measurements together: [tex]\(2.11 + 5.83 + 7.64 + 10.5 + 8.33 = 34.41 \text{ mL}\)[/tex].

3. Determine the Decimal Precision:
- Look at the decimal places in each measurement:
- 2.11 has 2 decimal places
- 5.83 has 2 decimal places
- 7.64 has 2 decimal places
- 10.5 has 1 decimal place
- 8.33 has 2 decimal places
- The measurement with the least number of decimal places is 10.5, which has 1 decimal place.

4. Apply the Correct Precision:
- When adding measurements, the result should be reported to the least number of decimal places of any measurement in the sum.
- Therefore, the total [tex]\(34.41 \text{ mL}\)[/tex] should be rounded to 1 decimal place.

5. Round the Total:
- Round 34.41 to one decimal place: [tex]\(34.41 \rightarrow 34.4 \text{ mL}\)[/tex].

Therefore, the sum of the measurements with the correct precision is [tex]\(34.4 \text{ mL}\)[/tex].

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