It should have three.
2
There should be 3.
When the value 4,449 is rounded to two significant figures the number should be reported as 4,400
Three. At first sight the answer might appear to be 2 but in that case the trailing should not be there. The fact that there is a trailing zero is an indication that the given number is accurate to 3 significant figures.
Three, because if it were not significant, the final 0 should not be there.
Five, because the trailing 0s should not still be there if they were not significant.
The answer depends on what operations were used. There should normally not be more significant figures in the answer than in any of the numbers used in the calculation.
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
There should be 3.
Two sf.
That depends on the context in which it is found, or the calculation(s) involved. It should have no more significant figures than the value with the least number of sig. figs.
The final answer.is only as accurate as the least accurate component in the calculation, so use the significant figures of the measurement with the fewest.
yes
The number of significant figures should be equal to the significant figures in the least precise measurement.
There are 4 significant figures to be reported.
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
The number 5321 has 4 significant figures.
There are 4 significant figures to be reported.