Want this question answered?
In any measurement, the accurately known digits and the first doubtful digits are called significant figures.
Significant figures
Suppose you have a variable whose exact value is not known. Repeated estimations give values which match up to a certain degree but beyond that they are different. You could take some sort of [weighted] average of the leading digits of these different parts and your estimate for the variable wold be the matched part with the estimated digit appended.For example, if you Google "mass of proton" the WIkipedia site give it as ‎1.672621898(21)×10−27 kg. The (21) - in parentheses - indicates that those two digits are estimated.
Accurately known digits along with first doubtful digit are called significant figures.
As of October 2015, the largest known prime number is 2^57,885,161 − 1, a number with 17,425,170 digits.
significant figures
Significant figure
In any measurement, the accurately known digits and the first doubtful digits are called significant figures.
Significant digits refer to the number of digits that are known versus the number of digits that are estimated. So if the number 20 is an approximation, there is only one significant digit, which is the 2. However, if 20 is accurate to the ones place, then there are 2 significant digits. 20.00 has four significant digits, because it is known that the number is accurate down to the hundredths place.
Significant figures
Significant Figure.
Suppose you have a variable whose exact value is not known. Repeated estimations give values which match up to a certain degree but beyond that they are different. You could take some sort of [weighted] average of the leading digits of these different parts and your estimate for the variable wold be the matched part with the estimated digit appended.For example, if you Google "mass of proton" the WIkipedia site give it as ‎1.672621898(21)×10−27 kg. The (21) - in parentheses - indicates that those two digits are estimated.
Accurately known digits along with first doubtful digit are called significant figures.
Original cost, estimated salvage value, and estimated useful life.
There are many codes that use 5 digits systems. One of the best known ones is the US postal service ZIP CODES. In health care, there is a 5 digit code system known as ICD9.
As of October 2015, the largest known prime number is 2^57,885,161 − 1, a number with 17,425,170 digits.
The two digit numbers in which the tens digit is five greater than the units digit are:5061728394The number we are looking for is ten times the sum of its digits, and so must be a multiple of 10. The only one of the above numbers which fits this is 50, as 5 is five greater than 0, and 50 = 10 x (5+0).