The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1".
The first figure to be discarded is '6' and as this is greater than 5 then the previous figure (4) is increased by 1 (to 5).
29.46 when rounded off to three significant figures is 29.5.
Three significant figures would be 29.5cm.
3.738mL, when rounded to three significant figures, is 3.74mL
It rounds to 3.74mL
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.
79,966.92 rounded to three significant figures is 8.00e4
Three significant figures would be 29.5cm.
3.738mL, when rounded to three significant figures, is 3.74mL
It is: 29.5 cm
29.5 cm
It rounds to 3.74mL
When rounded to three significant figures, 3.738 mL becomes 3.74 mL. Remember, to round to three significant figures, you start counting from the first non-zero digit from the left.
0.00721004 rounded into three significant figures is 0.00721
79,966.92 rounded to three significant figures is 8.00e4
0.00721004 rounded to three significant figures is 0.00721
44.981 rounded to three significant figures is 45.0
1,399.54 rounded to three significant figures is 1.40e3
16.558 rounded to three significant figures is 16.6