How many significant figures does the number 8,090 contain?

How many significant figures does the number 8,090 contain?

• A. 3
• B. 4
• C. 2
• D. 5

Answer: (B)

The number 8,090 contains four significant figures. When determining the number of significant figures in a number, it's important to consider which digits are significant. In this case, the digits 8, 0, 9, and the trailing 0 are all significant. The first digit "8" is significant because it is a non-zero digit. The "0" that follows it is significant because it is between significant digits (8 and 9). The digit "9" is also significant as a non-zero digit. Lastly, the trailing "0" at the end of 8,090 is significant because it serves a purpose in indicating the precision of the measurement -- it shows that the number is indeed 8,090 and not 8,090 with additional digits that could imply a less precise measurement. To summarize, all four digits in 8,090 are significant, leading to the conclusion that this number has four significant figures.

The number 8,090 contains four significant figures. When determining the number of significant figures in a number, it's important to consider which digits are significant. In this case, the digits 8, 0, 9, and the trailing 0 are all significant.

The first digit "8" is significant because it is a non-zero digit. The "0" that follows it is significant because it is between significant digits (8 and 9). The digit "9" is also significant as a non-zero digit. Lastly, the trailing "0" at the end of 8,090 is significant because it serves a purpose in indicating the precision of the measurement -- it shows that the number is indeed 8,090 and not 8,090 with additional digits that could imply a less precise measurement.

To summarize, all four digits in 8,090 are significant, leading to the conclusion that this number has four significant figures.