Questions: Round answer to proper number of significant figures.
2.74-0.00072=
Transcript text: Round answer to proper number of significant figures.
\[
2.74-0.00072=
\]
Solution
Solution Steps
To solve this problem, we need to perform a simple subtraction of two numbers. After obtaining the result, we will round it to the appropriate number of significant figures based on the numbers involved in the calculation. The number with the least number of significant figures will determine the number of significant figures in the final answer.
Step 1: Perform the Subtraction
To find the result of the subtraction, we calculate:
\[
2.74 - 0.00072 = 2.73928
\]
Step 2: Determine Significant Figures
The number \(2.74\) has 3 significant figures, and \(0.00072\) has 2 significant figures. The result should be rounded to the least number of significant figures, which is 2.
Step 3: Round the Result
Rounding \(2.73928\) to 2 significant figures gives:
\[
2.74
\]