Question: In the measurement 0.007890, how many significant figures are present?
Options:
3
4
5
6
Correct Answer: 5
Solution:
The significant figures are 7, 8, 9, and 0, totaling 4 significant figures.
In the measurement 0.007890, how many significant figures are present?
Practice Questions
Q1
In the measurement 0.007890, how many significant figures are present?
3
4
5
6
Questions & Step-by-Step Solutions
In the measurement 0.007890, how many significant figures are present?
Correct Answer: 4
Step 1: Identify the digits in the number 0.007890.
Step 2: Ignore the leading zeros (the zeros before the first non-zero digit).
Step 3: Count the remaining digits: 7, 8, 9, and the last 0.
Step 4: The digits 7, 8, 9, and 0 are all significant figures.
Step 5: Total the significant figures counted: 4.
Significant Figures – Significant figures are the digits in a number that contribute to its precision, including all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.
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