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英語 高校生

答えとできれば訳も教えていただきたいです

III. Aaron と Mayuka との間に, 自然な会話が成立するように,空欄 ( 31 ) から ( 40 ) に入る最も適切な表現を, a.〜d. の中から1つ選びなさい。 解答は解答用紙1枚目 (マークシート方式) の所定の解答欄にマークしなさい。 Aaron: So, Mayuka, after you graduate, ( 31 ) Mayuka: Well, I'm thinking of taking some time off and traveling for a while. Do you know about working holidays? Aaron: I've heard of them, but I don't know very much about them. Mayuka: Aaron: Mayuka: Aaron: Mayuka: Aaron: Mayuka: Aaron: Mayuka: Aaron: Mayuka: Aaron: (31) (32) (33) (34) Well, in certain countries you can work while you travel. (32) it's easy to extend your trip. (33) But actually, I think I want to start work right away. Oh really? What kind of company would you like to work for? (34) A big company would be great for long-term stability. But it might be a little bit boring. That's true. How about ( 35 ) I think I'd really love that. It seems really exciting and I think it would involve innovative thinking. But I'm a bit worried the pay might be lower than I want, and of course it's always possible that the company ( 36 ) Yeah I guess it's tough making decisions about where to work. If you could work anywhere, what would your dream job be? I'd like to work somewhere where ( 37 ) Maybe a green business of some sort? What would your dream job be? I'd like to start my own business and help to revitalize the economy in my hometown! It's in the countryside, here in Japan. Oh! What kind of business ( 38 ) I'm not exactly sure, but I'd like to use the experience I get on my working holiday to try to figure out what kind of business would be best. I'd like to start a business that combines (39) with international marketing opportunities. Wow! (40) a. do you have anything to do? b. what do you have to do? c. what do you want to do? d. do you want something to do? a. Since you can earn money while you're abroad b. You should add more days to your trip so c. Since it's interesting to work abroad d. Because you have never been abroad a. Keep telling me! b. It doesn't make sense. c. What a shock! d. That sounds great! a. It's already been decided! b. It's hard to decide. c. What have you decided? d. That's not a difficult decision.

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数学 高校生

基本例題54において写真の黄色の線で引いたところの説明の意味がわかりません。なぜその考え方が誤りなのかもう少しわかりやすく教えてほしいです。

420 基本例 54 平面上の点の移動と反復試行 右の図のように、東西に4本, 南北に5本の道路がある。 地点Aから出発した人が最短の道順を通って地点B へ 向かう。このとき,途中で地点Pを通る確率を求めよ。 ただし、各交差点で、東に行くか、 北に行くかは等確率と し、一方しか行けないときは確率でその方向に行くも A のとする。 指針 求める確率を とするのは誤り! A→P→Bの経路の総数 A→Bの経路の総数 これは,どの最短の道順も同様に確からしい場合の確率で、 本間は道順によって が異なる。 例えば, A111→→P→→Bの確率は 11/12/12/01/21-1-1-1-1/23 ·1·1·1·1= から, 8 A→1→11PBの確率は 1.1.1.1.1 ·1·1= 2 2 2 2 2 したがって,Pを通る道順を, 通る点で分けて確率を計算する。 1 32 1 3 6 + + 8 16 32 C2X22 Ca 右の図のように, 地点 C, D, C', D', P'をとる。 解答 P を通る道順には次の3つの場合があり,これらは互いに 排反である。 [1] 道順A→C→C→P この確率は1/2×1/2×1/1/2×1×1 (12)-1/23 1= 8 TUSCO [2] 道順A→D'→D→P この確率は sc.(1/2)(12/2)×1/2/3×1=3(12/11/16 [3] 道順A→P'→P この確率は(1/2)^(1/2)×1/28=6(1/21) 2 = よって, 求める確率は 6 32 16 1 32 2 10000 基本 52 C DP C D P A C' D P [1] 111 [2] ○○○と ○には、1個と 入る。 [3] ○○○○ ○には、2個と 入る。 =

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