Yes.
5, the only thing that is not considered a sign digit is a leading zero EG: 0.456 it will have 3 sign digit the 0. doesnt count as a sign digit
You cannot round off a number to 3 significant figures when it already has more than 3 significant figures. The number 10074 has 5 significant figures (1, 0, 0, 7 and 4). If the number were really 1.0074, then it could be rounded off to 3 significant figures: 1.01.
significant figures are digits of certainty. In other words they are exact numbers. Except zeros are placeholders (not exact) unless if they are in between non zeros. Also zeros at the end of numbers are significant figures if there is a decimal point.
Sol. Since the given number is divisible by 5, so 0 or 5 must come in place of $. But, a number ending with 5 is never divisible by 8. So, 0 will replace $. Now, the number formed by the last three digits is 4*0, which becomes divisible by 8, if * is replaced by 4. Hence, digits in place of * and $ are 4 and 0 respectively.
0.021 contains two significant figures. This indicates that an approximation has been made and the full number was, for example 0.0212. Note : This should not be confused with necessary and unnecessary zeros. The 0 immediately after the decimal point is a necessary zero. The zero in front of the decimal point is an unnecessary zero but is usually left in place in the absence of a whole number.
When they are between two non-zero digits or if there are after the decimal point. For example, the 0 is not significant in 1340 but it is significant in 1304 or 1340.0
30006 has 4 significant figures: 3, 0, 0, and 6. Zeros between non-zero digits are considered significant.
The number 70.8 has three significant figures. The digits 7, 0, and 8 are all considered significant because the zero is between non-zero digits.
The significant number for 0.000202 is 202. In this context, significant figures refer to the digits that contribute to its precision. Leading zeros do not count as significant, so only the digits 2, 0, and 2 are considered significant.
The number 0.01010 has four significant digits. The leading zeros (0.01) are not counted as significant, but the digits 1, 0, and the trailing 0 after the last non-zero digit are significant. Therefore, the significant digits are 1, 0, 1, and 0.
The number 1.0030 has five significant figures. Significant figures are the digits in a number that carry meaning contributing to its precision. Zeros between nonzero digits and trailing zeros after a decimal point are considered significant. Therefore, in this case, both the nonzero digits (1, 0, 0, 3, and 0) are significant figures.
In the number 30.1, there are three significant figures. The digits 3, 0, and 1 are all considered significant because they contribute to the precision of the measurement. Zeros that are placeholders or trailing zeros after a decimal point are also considered significant in this case.
Two significant digits, the 7 and trailing 0.
Three significant digits. Any 0's on the left side are excluded from significant digits but 0's on the right side are included.
201 .601 rounds to; .6 .6 rounds to 1 Thus; 200.601 => 201
There are 5 sig figs. The final zero is signficant.Another Answer:-It seems that there are only 4 significant figures in 6.6750 because 0 in this instance does not count as a significant figure.
The significant number for 1.4030 is 1.4030 itself, as it has five significant figures. All non-zero digits are considered significant, and any zeros between them or trailing zeros in the decimal portion are also significant. Thus, the digits 1, 4, 0, 3, and the final 0 all contribute to its significance.