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  2. List of mathematics competitions - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematics...

    Math-O-Vision (grades 9–12) Math Prize for Girls; MathWorks Math Modeling Challenge; Mu Alpha Theta; Pi Math Contest (for elementary, middle and high school students) United States of America Mathematical Olympiad (USAMO) United States of America Mathematical Talent Search (USAMTS) Rocket City Math League (pre-algebra to calculus)

  3. Trigonometry - Wikipedia

    en.wikipedia.org/wiki/Trigonometry

    Driven by the demands of navigation and the growing need for accurate maps of large geographic areas, trigonometry grew into a major branch of mathematics. [27] Bartholomaeus Pitiscus was the first to use the word, publishing his Trigonometria in 1595. [28] Gemma Frisius described for the first time the method of triangulation still used today ...

  4. Ninth grade - Wikipedia

    en.wikipedia.org/wiki/Ninth_grade

    Grade 9 subjects include Danish, English, Christian studies, history, social studies, mathematics, geography, biology, physics/chemistry and German and French as electives. [11] Students must sit compulsory school-leaving exams at the end of grade 9, and must also complete a mandatory project assignment during the year.

  5. Polar vortex headed for US will bring ‘exceptionally cold ...

    www.aol.com/news/polar-vortex-headed-us-bring...

    That means arctic air is blasting over the US, while pressure changes and the motion of the polar vortex whip up high winds and create a perfect recipe for wintry weather.

  6. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and ...

  7. NFL Week 16 winners, losers: Vikings have path to NFC's No. 1 ...

    www.aol.com/nfl-week-16-winners-losers-111040158...

    And, with the Seahawks' loss, Los Angeles is now a full game up in the NFC West after a 19-9 victory over the New York Jets. The Rams started the season 1-4 and have since won 8 of 10.

  8. Veteran and 'Devoted Father,' 68, Stabbed to Death on New ...

    www.aol.com/veteran-devoted-father-68-stabbed...

    Authorities said there are only "limited" details about the death of the man, whose family described him as "a beacon of joy and love"

  9. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The Clay Mathematics Institute officially designated the title Millennium Problem for the seven unsolved mathematical problems, the Birch and Swinnerton-Dyer conjecture, Hodge conjecture, Navier–Stokes existence and smoothness, P versus NP problem, Riemann hypothesis, Yang–Mills existence and mass gap, and the Poincaré conjecture at the ...