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English Senior High

下から15行目のthrow whichのthrow とはなんですか?

y II Day 12 15 5 Negro Leagues Baseball was a collection of major and minor-league baseball leagues that were the first to showcase black team sports on intertwined with the African American and American experience not only a national scale. Launched in 1895, the leagues, as with jazz, became as a cultural element, but as a lucrative business endeavor. team The leagues were not under central management, and schedules and composition League, were changeable from season to season. Appearance and disappearance of leagues was common: the National Colored Baseball for instance, collapsed after only two weeks of operations. Latins, especially Cubans, were also a significant presence on teams. In these ways, the Negro Leagues were quite similar to their white counterparts which would eventually consolidate into Major League Baseball. Blacks near the beginning of the 20th century had only a fraction of whites' purchasing power, so the emergence of the Negro Leagues might have seemed unlikely. However, the Negro Leagues had two main draws that accounted for its business success. The first was a deep reserve of athletic talent. After blacks were formally excluded from white leagues in the 1880s, the Negro Leagues were the sole organization through which black players could work professionally. The quality of Negro Leagues 20 players was high, and substantiated through exhibition matches between Negro Leagues and Major League teams: over the years, both had their fair share of wins and losses in these matches. Another reason for the success of the Negro Leagues was an increasingly affluent black fan base. Driven by American industrialization, blacks were concentrating in major cities such as New York City, Chicago, and Atlanta. Usually barred by custom-and in the South by law-from attending many white entertainment outlets, blacks turned to Negro Leagues games. As a result of these factors, by the 20th century the Negro Leagues were earning a combined millions of dollars. This profitability ended with the desegregation of Major League Baseball. Black fans began attending Major League games, starving the Negro Leagues of its core revenue source. By 1951, the Negro Leagues had ended, although a succession of black star athletes in the Major League had begun.

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Mathematics Junior High

幾何の作図です。 できるだけ簡潔な解説お願いします🥺 答えはア、イ、エです

BER S +3) 12 次の各問いに答えなさい。 (配点 17 ) ★★ (1) 右の図のように, 直線上に2点O, Aがあ る。 ∠BOA=120° となるような OA=OB を みたす点Bを作図によって求めたい。 点を中 心とする半径OAの円を0とし,円Oとの交 点のうち, AでないほうをCとし,点Aを中心 とする半径AOの円と円0との交点のうち, l の上側にある点をDとする。 O AJO GAM l このとき,点Bの作図の方法として適切なものを,次のア~エの中からすべて選んで 記号で答えなさい。(3点) ア点Cを中心とする半径COの円と円Oとの2交点がどちらもBである。 イ点Dを中心とする半径DAの円と円Oとの交点のうち,AでないほうをB」とする。 点Aを中心とする半径ABの円と円Oとの交点のうち,BでないほうをB2とすると, BとB2がどちらもBである。 ウ点Cを中心とする円Cと点Dを中心とする円D (ただし,円Cと円Dの半径は等しい) を2点で交わるようにかく。 円Cと円Dの2交点のうち、直線CDの上側にある点を Eとする。 点Aを中心とする半径ACの円をAとし, 直線OEと円Aとの交点のうち, lの上側にある点をB, とする。 また, 直線ODと円Aとの交点のうち, lの下側にあ る点をBとすると,BとBがどちらもBである。 立 A (食塩 Ha (図し エ点Cを中心とする円Cと点Dを中心とする円D(ただし,円Cと円の半径は等しい) を2点で交わるようにかく。円Cと円Dの2交点のうち, 直線CDの上側にある点を Eとする。 直線OEと円Oとの交点のうちの上側にある点をBとする。 また, 直 線ODと円Oとの交点のうち,DでないほうをB2 とすると, B, とBがどちらもBである。

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