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Q: How many zeros appearing in the number 0.0040500 are significant?

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The rules for identifying significant figures when writing or interpreting numbers are as follows: 1. All non-zero digits are considered significant. For example, 91 has two significant figures (9 and 1), while 123.45 has five significant figures (1, 2, 3, 4 and 5). 2. Zeros appearing anywhere between two non-zero digits are significant. Example: 101.1203 has seven significant figures: 1, 0, 1, 1, 2, 0 and 3. 3. Leading zeros are not significant. For example, 0.00052 has two significant figures: 5 and 2. 4. Trailing zeros in a number containing a decimal point are significant. For example, 12.2300 has six significant figures: 1, 2, 2, 3, 0 and 0. The number 0.000122300 still has only six significant figures (the zeros before the 1 are not significant). In addition, 120.00 has five significant figures since it has three trailing zeros.

There are three significant figures: the trailing zeros are significant because they are indicative of the precision of the number.

Trailing zeros in a number containing a decimal point are significant. For example, 12.2300 has six significant figures: 1, 2, 2, 3, 0 and 0. The number 0.000122300 still has only six significant figures (the zeros before the 1 are not significant). In addition, 120.00 has five significant figures since it has three trailing zeros.

any number containing 100 zeros has 100 zeros but i'm assuming you mean a 1 fallowed by 100 consecutive zeros; that is a Googol or 10,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000,­000

This number is Nonillion and it has 30 zeros in it. That's a lot!

Related questions

Four of the zeros are significant... the two zeros after the digit 5 0 are simply 'place fillers'.

5 of them. All non-zero digits are considered significant. Zeros appearing anywhere between two non-zero digits are significant. Leading zeros are not significant.

1. Zeros appearing between nonzero numbers are significant. For example, 3.02 has 3 significant figures. 2. Zeros appearing in front of nonzero numbers are not significant. For example, 0.0009 has 1 significant figure. 3. Zeros at the end of a number and to the right of a decimal point are significant. For example, 26.600 has 5 significant figures. 4. Zeros at the end of a number and to the left of a decimal point can be either significant or not significant. If the zero has been measured or estimated, it is significant. It is not significant if it has not been measured or estimated and is merely serving as a placeholder. A decimal placed after the zeros indicates that the zeros are significant. For example, 2000. has 4 significant figures. 2000 (with no decimal) has one significant figure. 5. In scientific notation, all digits appearing before the exponent are significant. For example, 3.226 x 105 has 4 significant figures.

None of the zeros in that number are significant.

Five. Zeros in between significant digits are significant and trailing zeros that are after the decimal are significant.

Yes - zeros in-between significant digits are significant.

Any number that is not zero is significant. However, zeros that appear between non-zeros are significant. Even more confusing is that leading zeros are not significant while trailing zeros are. So, it really depends on what you are looking at. And where the zeros are.

All zeros appearing in a number without a decimal point and to the right of the last nonzero digit are not significant unless indicated by a bar. Example: '1300' has two significant figures: 1 and 3. The zeros are not considered significant because they don't have a bar. However, 1300.0 has five significant figures. So 10200 has 3 significant figures because it does not have a decimal point so the zeros after the 2 are not considered significant.

The rule for determining significant figures is that all non-zero digits are considered significant, zeros between nonzero digits are significant, trailing zeros in a number with a decimal point are significant, and leading zeros in a decimal number are not significant.

There are 2 because of the leading zeros rule. Zeros at the beginning of a number are never significant.

Four - zeros between significant digits are significant.

The rules for identifying significant figures when writing or interpreting numbers are as follows:All non-zero digits are considered significant. For example, 91 has two significant figures (9 and 1), while 123.45 has five significant figures (1, 2, 3, 4 and 5).Zeros appearing anywhere between two non-zero digits are significant. Example: 101.1203 has seven significant figures: 1, 0, 1, 1, 2, 0 and 3.Leading zeros are not significant. For example, 0.00052 has two significant figures: 5 and 2.Trailing zeros in a number containing a decimal point are significant. For example, 12.2300 has six significant figures: 1, 2, 2, 3, 0 and 0. The number 0.000122300 still has only six significant figures (the zeros before the 1 are not significant). In addition, 120.00 has five significant figures since it has three trailing zeros.