Round the answer to the correct number of significant figures.
10.05
2.8899 = 29.043495
29
29.04
29.0435
29.043
10.05 - has three significant figures, so the rounded answer would be 10.1
2.8899 - has five significant figures, so the rounded answer would be 2.8899
29.043495 - has eight significant figures, so the rounded answer would be 29.0435
29 - already has two significant figures, so no rounding is necessary
29.04 - already has four significant figures, so no rounding is necessary
29.043 - already has five significant figures, so no rounding is necessary
To round the numbers to the correct number of significant figures:
10.05 - Since there are four significant figures in the original number, rounding to three significant figures would make the answer 10.1.
2.8899 - Originally, this number has five significant figures. When rounded to three significant figures, the answer is 2.89.
29.043495 - The original number has eight significant figures. Rounding to four significant figures would yield 29.04.
29 - Since this number is already a whole number, there are no decimal places to round, so the answer remains as 29.
29.04 - This number has four significant figures already, so there is no need to round it.
29.0435 - The original number has six significant figures, and rounding to five significant figures would yield 29.043.