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The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). [3]
The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.
As another example, in a population where the lowest 50% of individuals have no income, and the other 50% have equal income, the Gini coefficient is 0.5; whereas for another population where the lowest 75% of people have 25% of income and the top 25% have 75% of the income, the Gini index is also 0.5.
Hawaii has the highest percentage of Asian Americans and multiracial Americans and the lowest percentage of White Americans of any state. It is the only state where people who identify as Asian Americans are the largest ethnic group. In 2012, 14.5% of the resident population under age 1 was non-Hispanic white. [174]
The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth.
In the following table, for each country/territory, IMF figures shows government's revenue, expenditure, and net lending (+)/ borrowing (-) as percentage of GDP and in current USD, calculated on an exchange rate basis, i.e., not in purchasing power parity (PPP) terms. [13] Sorting is alphabetical by country code, according to ISO 3166-1 alpha-3.
Life expectancy for both sexes is among the lowest of all states. [167] Life expectancies in 2014 for both sexes in West Virginia counties ranged from a low of 70.3 years in McDowell County to a high of 79.3 years in Pendleton County. McDowell and several other West Virginia counties are among the counties in the U.S. with the lowest life ...
Broadband subscriptions by region [4]; Subscription Place 2007 2010 2014 2019 [5]; Fixed Africa 0.1% 0.2% 0.4% 0.4% Americas 11% 14% 17% 22% Arab States 1%