3.74mL, as the 8 rounds up
Three - the first two zeros are placeholders.
There are three. The 4, the 5 and the zero in between. The two last zeros serve only to properly space the decimal point which, in this number, is implied.
301
There are three significant figures in 43.0. The zero at the end of the number is considered significant because it serves to specify the accuracy of the measurement to the tenths place.
It already is rounded to three significant figures.
Three significant figures would be 29.5cm.
3.738mL, when rounded to three significant figures, is 3.74mL
It rounds to 3.74mL
29.5 cm
It is: 29.5 cm
When performing multiplication or division, the result should be rounded to the same number of significant figures as the measurement with the fewest significant figures involved in the calculation. For example, if you multiply a number with three significant figures by a number with five significant figures, the final answer should be rounded to three significant figures. This rule ensures that the precision of the answer reflects the least precise measurement used in the calculation.
0.00721004 rounded into three significant figures is 0.00721
44.981 rounded to three significant figures is 45.0
0.00721004 rounded to three significant figures is 0.00721
79,966.92 rounded to three significant figures is 8.00e4
1,399.54 rounded to three significant figures is 1.40e3
16.558 rounded to three significant figures is 16.6