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Algebra is the branch of mathematics that studies certain abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic operations other than the standard arithmetic operations, such as addition and multiplication.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. American child prodigy (1898–1944) William James Sidis Sidis at his Harvard graduation (1914) Born (1898-04-01) April 1, 1898 Boston, Massachusetts, U.S. Died July 17, 1944 (1944-07-17) (aged 46) Boston, Massachusetts, U.S. Other names John W. Shattuck Frank Folupa Parker Greene Jacob ...
The primes of the form 2n+1 are the odd primes, including all primes other than 2. Some sequences have alternate names: 4n+1 are Pythagorean primes, 4n+3 are the integer Gaussian primes, and 6n+5 are the Eisenstein primes (with 2 omitted).
The Gini coefficient is a number between 0 and 1 or 100, where 0 represents perfect equality (everyone has the same income), while an index of 1 or 100 implies perfect inequality (one person has all the income and everyone else has no income).
This energy can be released by the processes of nuclear fission (~ 0.1%), nuclear fusion (~ 1%), or the annihilation of some or all of the matter in the volume V by matter–antimatter collisions (100%). [citation needed] The most effective ways of accessing this energy, aside from antimatter, are fusion and fission. Fusion is the process by ...
0.83* 1.64* Yes Black or African American −2.06* −3.30* No Asian 0.00 2.62* Yes American Indian or Alaska Native −0.15 −0.91* No On reservation −4.88* −5.64* No American Indian areas off reservation 3.86 3.06 No Balance of the United States 0.05 −0.86* No Native Hawaiian or other Pacific Islander −1.02 1.28 No Some other race
The typical height of an adult human is between 1.4 and 1.9 m (4 ft 7 in and 6 ft 3 in), although this varies significantly depending on sex, ethnic origin, and family bloodlines. [ 246 ] [ 247 ] Body size is partly determined by genes and is also significantly influenced by environmental factors such as diet , exercise, and sleep patterns .
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 February 2025. Gas in an atmosphere with certain absorption characteristics This article is about the physical properties of greenhouse gases. For how human activities are adding to greenhouse gases, see Greenhouse gas emissions. Greenhouse gases trap some of the heat that results when sunlight heats ...