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数学 高校生

注意書きのところの(2)ではRについたら、それ以後を考える必要がない とありますが何故でしょうか?

(1) 題意は「仮にPからQまで道が5本あったとしたら,1つの進 (2) 各交差点で、 上へ行くか右へ行くかが同様に確からしいとき 126 道の確率 右図のような道があり,PからQまで最短経路で すすむことを考える。 このとき,次の問いに答えよ。 (1) 最短経路である1つの道を選ぶことが同様に確 からしいとして, Rを通る確率を求めよ。 (2) 各交差点で、上へ行くか右へ行くかが同様に確からしい上、 P Rを通る確率を求めよ。 精講 を選ぶ確率は」ということです。 (2) 題意は「ある交差点にきたとき,上または右を選ぶ確率がそれぞれ」 いうことです。 解 答 UAS (1) PからQまで行く最短経路は 4! -=4(通り) (4C1でもよい) 112 また,PからRまで行く最短経路は かの日 3! -=3(通り) (Ciでもよい) RからQまで行く最短経路は1通りだから PからRを通りQまで行く最短経路は 3×1=3(通り) 3 よって,求める確率は 4 (2) (1)より題意をみたす経路は3本しかないことがわかる。 ここで, A, B, C, Dを右図のように定める。 i) P→A→B→Rとすすむ場合, 進路が2つある交差点はPのみ. ABR P CD よって, i)である確率は 2 00 1

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英語 高校生

コミュニケーション英語(ランドマークⅡ advance d)の答えをなくしてしまいました、どなたか教えてくれる方いませんか🙇‍♂️

(札幌大) 次の文章を読んで,下の設問に答えなさい。 Gwen Stefani, lead singer of the pop group No Doubt, released her first solo album, Love, The album introduced to the world the Harajuku B Love, Angel, Music, Baby \arge win Angel, Music, Baby, in November 2002. Girls, who represented trendy Japanese culture. In a magazine interview, Stefani said the idea of using Japanese girls as dancers came to ating lary b 2opened - and her in a dream.(She first sang about this idea in the song “Rich Girl.") Stefani gave each Love, Angel, Music and Baby nd wants of the dancers a name from the title of her album called them the Harajuku Girls in reference to the exciting Tokyo shopping area popular or in Par The Harajuku Girls were instantly interesting and mysterious to young adults in the West. particularly the Gothic Lolita style. They with young people. The Harajuku Girl Mystique* everythin hat woul Their clothes symbolized Tokyo street fashion gaine nd appeared in the music videos for Stefani's new album, and accompanied her to awards turned 」 ceremonies and promotional events. The Harajuku Girls never spoke in public, which added oroduch singer develop other projects. Stefani designed a limited-edition digital camera (produced by a stron to their mystery. op to bu Not only did the Harajuku Girls inspire Stefani in her music making, they also helped the HP) featuring the Harajuku Girls. She also started a product line called "Harajuku Lovers." The line consists of clothing and accessories for men, women and children, as well as products for the home, featuring contemporary Japanese elements. [注] mystique : 神秘 問1.以下の問いに英語で答えなさい。 What are the names of the “Harajuku Girls"? 0en ai onide 問2.以下の質問に最も適切な答えを選びなさい。 (1) What are each of the Harajuku Girls named after? 2. Gwen Stefani's song “Rich Girl." 並べ替 4. The title of Gwen Stefani's album. 1. Japanese female dancers. 3. A popular Tokyo shopping area. (2) Which of the following statements about Harajuku Girls is false? 1. Their clothing represented Tokyo street fashion such as the Gothic Lolita style. 2. They symbolized the positive and aggressive attitudes of Japanese people. 3. They were considered mysterious as they did not speak. 4. They participated in Gwen Stefani's music videos and events. 33 Lesson 4

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