False position method lines on a conic section. A more typical example is this "joint purchase" problem: Now an item is purchased jointly; everyone contributes 8 [coins], the excess is 3; everyone contributes 7, the deficit is 4. Tell: The number of people, the item price, what is each? Answer: 7 people, item price 53. Between the 9th and 10th centuries, the Egyptian mathematician Abu Kamil wrote a now-lost treatise on the use of double false position, known as the "Book of the Two Errors" ("Kitāb al-khaṭāʾayn"). The oldest surviving writing on double false position from the Middle East is that of Qusta
Soccer in the United States effectively the amateur fifth division of soccer in the United States. The Lamar Hunt U.S. Open Cup is a knockout tournament in American soccer. The tournament is the oldest ongoing national soccer competition in the U.S. and was historically open to all United States Soccer Federation affiliated teams, from amateur adult club teams to the professional clubs of Major League Soccer. Since the 2016 edition, professional teams that are majority-owned, or whose playing staff is managed, by a higher-division outdoor professional team have been barred from the competition; all other U.S. Soccer-affiliated teams remain eligible to enter. The Open Cup