2nd sig fig is 5, next digit (3rd sig fig) is 2 which is less than 5, so round down;
⇒ 1.5255698 = 1.5 to 2 sig fig.
21,600 using only four significant figures is still 21,600.
There are 3 significant figures
Significant figures are calculated using various rules.ÊAll non-zero numbers are significant and all zeros that are to the right of the decimal point as well as at the end of a number are significant.ÊTherefore, 1.050L has 4 significant figures.
The greater the number of significant figures, the greater the precision. Each significant figure increases the precision by a factor of ten. For example pi = 3.14 is accurate to 3 significant figures, while pi = 3.14159 with 6 significant figures is a more accurate representation.
192
1.3 gallons is equivalent to 4921 cubic centimeters when rounded to 2 significant figures.
145.992 using only four significant figures is 146.0
0.53
61.37795276 in four significant figures is 61.38
21,600 using only four significant figures is still 21,600.
To one sig fig, 300 To two sig figs, 310 To three sig figs, 314
840 using four significant figures is 840.0
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". When 16490 is rounded off to 2 significant figures then the first figure to be discarded is 4. As this is less than 5 then the previous figure (6) is not increased by 1. 16490 to 2 significant figures is 16000.
There are 3 significant figures
There is one significant digit in 0.05 (the 5... the zero before it is a placeholder) and two significant digits in 3.1. So your answer should have one sig fig: 0.05 x 3.1 = 0.155 = 0.2 (with correct # of sig figs)
Answer: four. All written decimals are significant (even if it is 0).However if you have a physics computation where one number turns out to be x = 2.0 (2 significant figures) and the other turns out to be y = 37.15 (4 significant figures), then to compute the product x*y you should take the least of these significant numbers you are using. Hence, you will find thatx*y = 2.0 * 37.15 (= 74.30) = 74 (rounded to the nearest number with 2 significant digits only.)So, it depends on the context you are using this number in.
To simplify the expression 656.65 using significant figures, we first identify the significant figures in the number. The digits 6, 5, and 6 are all significant, as is the 6 in the hundredths place, giving us a total of five significant figures. If we were to round this number to three significant figures, it would become 657, as the digit following the third significant figure (the second 6) rounds it up.