Question
Round off the following number to two significant figures: 652,387
Ask by Thornton Park. in the United States
Mar 23,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The number 652,387 rounded to two significant figures is 650,000.
Solution
- Express the given number in scientific notation:
- To round to two significant figures, we consider the first two digits,
, and look at the third digit (which is 2). - Since
, the second digit remains unchanged. - The rounded number in scientific notation is:
- Converting back to standard notation, we have:
Thus, the rounded number is
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Simplify this solution Mind Expander
When rounding off 652,387 to two significant figures, we look at the first two digits: 6 and 5. The next digit is 2, which tells us to keep the 5 as is. Therefore, rounded to two significant figures, the number becomes 6,500.
For a fun fact, did you know that significant figures are used not just in rounding but also to express the precision of a measurement? For example, in scientific studies, the number of significant figures indicates how reliable, accurate, or precise the measurement is!
