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The significant digits are: 3701; so there are four such digits in the measurement. These are the digits that convey the degree of precision included. Leading zeroes and trailing zeroes do not add such meaning.
0.0050 has two significant figures, the 5 and the trailing 0. The trailing zero is significant because it comes after the decimal. The leading zeroes before the 5 are place holders and are not significant.
Technically it is 30.40 to 4 s.f. Note that you must explicitly specify the significance of any trailing zeroes to remove any ambiguity.
There is no gazillion. it is just a make up word like one zillion and one jillion.It does mean something.Like, if you have ever heard of a gazillionaire, it prbably just means that they have a lot of money.Here is a list of "illions" just to prove it. million 6 zeroes billion 9 zeroes trillion 12 zeroes quadrillion 15 zeroes quintillion 18 zeroes sextillion 21 zeroes septillion 24 zeroes octillion 27 zeroes nonillion 30 zeroes decillion 33 zeroes undecillion 36 zeroes duodecillion 39 zeroes tredecillion 42 zeroes quattuordecillion 45 zeroes quindecillion 48 zeroes sexdecillion 51 zeroes septendecillion 54 zeroes octodecillion 57 zeroes novemdecillion 60 zeroes vigintillion 63 zeroes googel 100 zeroes. and last but not least, centillion 303 zeroes! If you don't believe me, go to www.jimloy.com/math/billion.htm P.S. Can you see that they have three more zeroes than each other? PEACE OUT
Expressed as a decimal, one tenth is equal to 0.1. Following the trailing zero, the decimal form of one tenth does not need to contain any zeroes unless it is being used to express a fraction of a monetary unit.