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  2. Curtiss Model E - Wikipedia

    en.wikipedia.org/wiki/Curtiss_Model_E

    The Model E was designed and built as a two-seater, although in practice some of the lower-powered versions were converted to single-seaters. Black pontoons on the wingtips of A-1 slanted diagonally backward toward the water to reduce friction on water and serve to balance aircraft on water. On the bottom of each pontoon is a little hydroplane ...

  3. Education in Romania - Wikipedia

    en.wikipedia.org/wiki/Education_in_Romania

    Education in Romania. Education in Romania is based on a free-tuition, egalitarian system. Access to free education is guaranteed by Article 32 in the Constitution of Romania. [ 1] Education is regulated and enforced by the Ministry of National Education. [ 2] Each step has its own form of organization and is subject to different laws and ...

  4. Catalogues of classical compositions - Wikipedia

    en.wikipedia.org/wiki/Catalogues_of_classical...

    In Chopin's case, at least four latter-day catalogues vie for prominence: Maurice J. E. Brown (B numbers); Krystyna Kobylańska (KK numbers); Józef Michał Chomiński, whose catalogue is segmented into six parts, each part utilising a different letter (A, C, D, E, P and S); and Chopin National Edition WN numbers. Hence, a work of Chopin can be ...

  5. Mercedes-Benz E-Class (W212) - Wikipedia

    en.wikipedia.org/wiki/Mercedes-Benz_E-Class_(W212)

    The W212 and S212 Mercedes-Benz E-Class series is the fourth generation of the E-Class range of executive cars which was produced by Mercedes-Benz between 2009 and 2016 as the successor to the W211 E-Class. The body styles of the range are either four-door sedan/saloon (W212) or a five-door estate/wagon (S212).

  6. Arithmetic progression - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_progression

    Arithmetic progression. An arithmetic progression or arithmetic sequence (AP) is a sequence of numbers such that the difference from any succeeding term to its preceding term remains constant throughout the sequence. The constant difference is called common difference of that arithmetic progression. For instance, the sequence 5, 7, 9, 11, 13 ...

  7. Pythagorean theorem - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_theorem

    Interior angle Δθ = θ 1 −θ 2. The Pythagorean theorem is a special case of the more general theorem relating the lengths of sides in any triangle, the law of cosines, which states that where is the angle between sides and . [ 45] When is radians or 90°, then , and the formula reduces to the usual Pythagorean theorem.

  8. AOL

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  9. e (mathematical constant) - Wikipedia

    en.wikipedia.org/wiki/E_(mathematical_constant)

    e. The number e is a mathematical constant approximately equal to 2.71828 that can be characterized in many ways. It is the base of the natural logarithm function. It is the limit of as n tends to infinity, an expression that arises in the computation of compound interest.