3 Significant Figures
3 significant figures
To round it off to 3 significant figures, we require to round it off to 6 decimal places after the decimal point. 0.0001366 = 0.000137 correct to 3 significant figures. (6) 7.304 → 7.30 correct to 3 significant figures.
Why do we use 3 significant figures?
By using significant figures, we can show how precise a number is. If we express a number beyond the place to which we have actually measured (and are therefore certain of), we compromise the integrity of what this number is representing.
When 14.25 is rounded off to three significant digits What is the result?
When 14.25 is rounded off to three significant digits What is the result? 14.25 contains 4 significant figures and 2 decimals. 14.25 rounded to 3 sig figs is 14.2, to 2 sig figs is 14, and to 1 sig figs is 10.
IS 100 have 3 significant figures?
3) Trailing zeros in a number are significant only if the number contains a decimal point. Example: 100.0 has 4 significant figures. 100 has 1 significant figure. 4) Zeros in the beginning of a number whose only function is to place the decimal point are not significant.
How many significant figures does the number 2001 have?
The number 2001 has four significant figures, and the number 607,402 has six significant figures. Zeros following a decimal point preceded by a nonzero integer are significant.
How many significant figures does 3 000 have?
So, 3000 has one significant figure, but 3000.0 has five significant figures because it indicates that it has been measured to one decimal place. Another benefit of using scientific notation is that it is an efficient way to show the number of significant figures.
How many significant figures does 90.00 have?
4 significant figures. Trailing zeros after decimal point are considered as significant figures.
How many significant figures does 23.50 have?
23.50 – Four significant digits. The final zero is significant because the number contains a decimal place (see rule #4 above).
When 15.753 is round off to 3 significant digits?
Answer: When 15.753 is round off to 3 significant digit 15.8 Is obtained.
How many significant figures does 0.020 have?
Explanation: 0.020 has two significant figures. The 2 is significant because all non-zero numbers are signficant. The second 0 is significant because all zeros at the end of a decimal are significant.
How many significant figures 300 has?
a) If there is no decimal, the zeros are NOT significant. Example: 300 has 1 sig. fig., 25400 has 3 sig.
How many significant figures is 150?
150 has 2 sig figs.
How many significant figures does 10.03 have?
10.03 has 4 sig. figs. 4) Trailing zeros (zeros that come after non-zero digits) are significant only if the number has a decimal point.
How many significant figures does 0.00002 have?
Zeros appearing in front of all nonzero digits are not significant. 0.023154 has five sig figs. 0.00002 has one sig fig.
How many significant figures does .00200 have?
The measurements . 00200, . 00220, 0200, 2.00, 2.20, 220., 222 have three significant figures.
How many significant figures does 1.200 have?
figs.) trailing zeros are significant only if a number contains a decimal point (i.e., 1200 has two sign. figs.; 1200.00 has six sign.
How many significant figures does 0.031 have?
| Explanation | Answer | |
|---|---|---|
| b | The leading zeros are not significant (rule 3). The 3 and the 1 are significant (rule 1). | 0.031, two significant figures |
| c | The 5, the 2 and the 9 are significant (rule 1). The trailing zero is also significant (rule 5). | 52.90, four significant figures |
How many significant figures does 30.000 have?
This lets me know that there are just two significant digits in 30,000, because it is uncertain at the thousands place.
How many significant figures does 250.00 have?
250 The trailing zero is not significant (no decimal point). The number 250 has 2 significant figures.
How many significant figures does 40.7 have?
a. 40.7 L has three significant figures.
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