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The Babylonians were aware that this was an approximation, and one Old Babylonian mathematical tablet excavated near Susa in 1936 (dated to between the 19th and 17th centuries BCE) gives a better approximation of π as 25 ⁄ 8 = 3.125, about 0.528% below the exact value. [8] [9] [10] [11]
Fractions and multiples of the drachma were minted by many states, ... Using a labor-equivalent calculation, ... It was divided into six obols of 0.72 grams, which ...
To estimate the number of periods required to double an original investment, divide the most convenient "rule-quantity" by the expected growth rate, expressed as a percentage. For instance, if you were to invest $100 with compounding interest at a rate of 9% per annum, the rule of 72 gives 72/9 = 8 years required for the investment to be worth ...
If a criterion means a cutoff point, it is important whether or not it is met, but it is unimportant how much it is over or under. He did not mean that it should be strictly 0.8 when referring to the criteria of 0.8. If the reliability has a value near 0.8 (e.g., 0.78), it can be considered that his recommendation has been met. [34]
[7] [8] However, this figure drops to 0.52 after social assistance is taken into account and drops again to 0.47 after taxation. [9] Slovakia has the lowest Gini coefficient, with a Gini coefficient of 0.232. [10] Various sources have estimated the Gini coefficient of the global income in 2005 to be between 0.61 and 0.68. [11] [12]
The physical group size equivalent to m minutes of arc can be calculated as follows: group size = tan( m / 60 ) × distance. In the example previously given, for 1 minute of arc, and substituting 3,600 inches for 100 yards, 3,600 tan( 1 / 60 ) ≈ 1.047 inches. In metric units 1 MOA at 100 metres ≈ 2.908 centimetres.
The joule (/ dʒ uː l / JOOL, or / dʒ aʊ l / JOWL; symbol: J) is the unit of energy in the International System of Units (SI). [1] In terms of SI base units, one joule corresponds to one kilogram-square metre per square second (1 J = 1 kg⋅m 2 ⋅s −2).
It equals 6°, so a whole turn was divided into 60 hexacontades. pechus: 144 to 180: 2° to 2°30′ The pechus was a Babylonian unit equal to about 2° or 2 + 1 / 2 °. diameter part: ≈376.991: ≈0.95493° The diameter part (occasionally used in Islamic mathematics) is 1 / 60 radian. One "diameter part" is approximately 0. ...