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In science education, a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation. As most word problems involve a narrative of some sort, they are sometimes referred to as story problems and ...
Word problem (mathematics) In computational mathematics, a word problem is the problem of deciding whether two given expressions are equivalent with respect to a set of rewriting identities. A prototypical example is the word problem for groups, but there are many other instances as well.
The symbol # is known variously in English-speaking regions as the number sign, hash, or pound sign. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔ .
Open problem. In science and mathematics, an open problem or an open question is a known problem which can be accurately stated, and which is assumed to have an objective and verifiable solution, but which has not yet been solved (i.e., no solution for it is known). In the history of science, some of these supposed open problems were "solved ...
The crwth [6] (pronounced /ˈkrʊθ/ or /ˈkruːθ/, also spelled cruth in English) is a Welsh musical instrument similar to the violin. [7] He intricately rhymes, to the music of crwth and pibgorn. [8] cwtch (a hiding place or cubby hole) is also from Welsh (albeit a recent word influenced by English, and used almost exclusively in the variant ...
See the ISO 3166-3 standard for former country codes. British Virgin Islands – See Virgin Islands (British) . Burma – See Myanmar . Cape Verde – See Cabo Verde . Caribbean Netherlands – See Bonaire, Sint Eustatius and Saba . China, The Republic of – See Taiwan (Province of China) . Democratic People's Republic of Korea – See Korea ...
Teudat Zehut (Hebrew: תעודת זהות t'udát zehút) or Huwiyyah (Arabic: بطاقة هوية biṭāqat huwiyyah) is the Israeli compulsory identity document issued by the Ministry of Interior, as prescribed in the Identity Card Carrying and Displaying Act of 1982: "Any resident sixteen years of age or older must at all times carry an Identity card, and present it upon demand to a senior ...
List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [1]