When multiplying 3.24 by 2.1, what is the correct number of significant figures in the final answer?
Practice Questions
1 question
Q1
When multiplying 3.24 by 2.1, what is the correct number of significant figures in the final answer?
4
3
2
1
In multiplication, the result should have the same number of significant figures as the factor with the least significant figures. 3.24 has 3 significant figures and 2.1 has 2 significant figures, so the answer should have 2 significant figures.
Questions & Step-by-step Solutions
1 item
Q
Q: When multiplying 3.24 by 2.1, what is the correct number of significant figures in the final answer?
Solution: In multiplication, the result should have the same number of significant figures as the factor with the least significant figures. 3.24 has 3 significant figures and 2.1 has 2 significant figures, so the answer should have 2 significant figures.
Steps: 7
Step 1: Identify the numbers you are multiplying: 3.24 and 2.1.
Step 2: Count the significant figures in each number.
Step 3: For 3.24, there are 3 significant figures (3, 2, and 4).
Step 4: For 2.1, there are 2 significant figures (2 and 1).
Step 5: Determine which number has the least significant figures. Here, 2.1 has the least with 2 significant figures.
Step 6: When you multiply the two numbers, your final answer should have the same number of significant figures as the number with the least significant figures.
Step 7: Therefore, the final answer should have 2 significant figures.
