至急😿😿(3)ってなんで4個のしきりじゃなくて5個なんですか！！

重要 例題35 数字の順列(数の大小関係が条件) 次の条件を満たす整数の組(a1, az, as, a4, as) の個数を求めよ。 (2) 0Sa」Sazhassasass3 基本 33,34 (1) 0<ai<a2<as<as<as<9 (3) a+aztastastas<3, a;20(i=1, 2, 3,4, 5) 8の8個の数字から異なる5個 指針>(1) ai, az, ……, as はすべて異なるから,1, 2, を選び,小さい順に a1, az, → 求める個数は組合せ&Cs に一致する。 (2)(1)とは違って, 条件の式に<を含むから,0, 1, 2, 3の 4個の数字から重複を許」 て5個を選び,小さい順に a, a2, 求める個数は重複組合せ Hs に一致する。 (3) おき換えを利用すると,不等式の条件を等式の条件に変更できる。 3-(a+az+as+astas)=bとおくと ataztastastas+b=3 また,aitaz+as+astas<3から よって,基本例題34(1) と同様にして求められる。 ………, as を対応させればよい。 asを対応させればよい。 一等式 620 解答 8の8個の数字から異なる5個を選び, 小さい …, as とすると, 条件を満たす組が1つ決ま 検討 うにして解くこともできる。 (2) 「.348 検討の方法の利 (2), (3) は次のよ 順に a1, a2, る。 7 用] 6:=a:+i(i=1, 2, 3, 4, 5) とすると, 条件は よって,求める組の個数は (2) 0, 1, 2, 3の4個の数字から重複を許して5個を選び, 小 さい順に a1, a2, 決まる。 よって,求める組の個数は (3) 3-(a+az+as+as+as)=b とおくと ataztas+a4+as+b=3, a;20(i=1, 2, 3, 4, 5), b20 よって, 求める組の個数は, ① を満たす0以上の整数の組の 個数に等しい。これは異なる6個のものから3個取る重複組 合せの総数に等しく 別解 a+az+dstastas=k(k=0, 1, 2, 3) を満たす0以 上の整数の組(a,, az, as, as, as)の数は sHeであるから sHo+sH」+H2+sHs=.Co+sCi+C2+,C3 8Cs=&C=56 (個) 0<bくb2くbsくb4<bょく9 と同値になる。よって, ((1)の結果から 56個 (3) 3個の○と5個の仕切り を並べ, 例えば, TO|I○○|| の場合は (0, 1, 0, 2, 0)を表すと 考える。このとき, AIB|C|D|E|F とすると, A, B, C, D, asとすると,条件を満たす組が1つ Hs=4+5-1Cs=&Cs=56 (個) の Eの部分に入る○の数をそ れぞれ a1, a2, as, A4, Us とすれば組が1っ決まるか sC。=56(個) Hs=6+3-1C3=&C3=56 (個) ら =1+5+15+35=56 (個)

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promises of life - he of those complicated machines /that show the earthquake ten thousand miles away He had ry gift' for hope, a romantic readiness/which d in any other person/and which it is not likel again/ No - Gatsby turned out all right at the

なぜ見いだすと訳せるのですか？

extraotdinary gift for hope, a romantic readiness which 1 was like one of those complicated machines /that show the presénce of an earthquake ten thousand miles away He had an extraordinaary gift for hope, a romantic readiness which I about him, a herghtened sensitivity to the promises of life - he have never found in any other person and which it is not likelv Ishall ever find again. No- Gatsby turned out all right at the

(2)はなぜcameじゃなくてsentなんですか？

limited resources 限りある資源 global warming 地球温暖化 wind power generator 風力発電機 kW キロワット(電気の出力の単位) damage~ ~に害を与える blade ブレード(発電機の翼) less littleの比較級 (1)(0 )にあてはまる最も適当な語を, 次のアからエまでの中から選んで、 そのかな符号 を書きなさい。 ア break easily O7 イ stop the wind ウ do not turn エ damage the earth (A)にあてはまる最も適当な語を, 次の 5語の中から選んで, 正しい形にかえて書き なさい。 i nd make toa help COmé send call m 下線2のついた文が, 本文の内容に合うように,【 内の語句を正しい順序に並べか えなさい。 utal euiod w1a bna guiom fdinunsd ad n m te ods ni nret ed nigod bs vhueo (4)/ 下線3のように考える理由として最も適当なものを, 次のアからエまでの中から選んで, そ のかな符号を書きなさい。 omoed bos vinobbua looo omosed vem o1 gi: odi ア We need a lot of 1 money to produce energy by wind power generations. Wind power generation is the best way to get energy of all. n Wind power generation does not damage the earth when there is no wind. エ/The energy we get should be clean to save the earth. (5 次のアから力までの文の中から, その内容が本文に書かれていることと一致するものを全て 選んで,そのかな符号を書きなさい。 会 エさて ア Wind power generation is a way which does not damage the earth. た In Japan, wind power generation has been popular since 1891. ウ/ Many of the wind power generators in Japan are near the sea in some prefectures because they need a windy and large place. 39169w sivesw st uot エ) If we want to have more wind power generators, alot of money will be needed. す Energy by wind power generation in Japan is the smallest of all the countries im the world. カ/ Because we do not want to damage the earth, we need energy to have a good life.

お願いします教えて欲しいです

where possible, using a slash. Put the relative pronouns in brackets if they can be left out. Put commas Grammar:relative clauses Complete the sentences with the correct rolativo ponoune Irolative possessive word). Give alternatives where necessary. 1. Idon't like people the first to alk on lose their temper easily. 2. The trumpet is the instrument .really excites me. 3. She is the only person . understands me. This is the guy wife works for my brother. 4. 5. can support life. It seems that the Earth is the only planet. Tealthy 6. Jane had recommended to us. We stayed at the Grand Hotel. Jane had recommended to us. 7. We stayed at the hotel 8. A The bed I slept in last night wasn't very comfortable. the nane was R surprised everybody. 9. Jim passed his driving test designs buildings. 10. An architect is someone . hie he's enjoying very much. ant Celebrat Colin told me about his new job Iwrote down on a piece of paper. 12. 20. She told me her address ike movies Gary is talking to? 13. Do you know the woman Tike plao The sun. is one of millions of stars in the universe 14. 15. provides us with heat and light. was a pity. 16. Sheila couldn't come to the party. I spoke on the phone last night 17. Mr Carter to is very interested in our plan. table. It was a meeting . importance I did not realize at the time. 18. ..I did not realize at the time. 19. It was a meeting the importance of . 20. This is Felicity sister you met last week. 21. He never admits his mistakes . is extremely annoying. 22. The girl Iwent out with last night stole my wallet. 23. Thave been let down bya person on I thought l could rely.

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did alot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did a lot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い cot

ここの答えを教えてください🙏🏻

4 Complete the sentences and read them aloud.Grammar in Context for his research on iPS cells in 2012. 2012年,ノーベル賞(a Nobel Prize)がIPS 細胞の研究で山中教授に授与されました. 1. patients suffering from serious diseases in 2. the near future. iPS 細胞は近い将来, 重い病気を患っている患者を救うことができると言われています。 the recent progress in science. 3. 最近の科学の進歩には本当に感動しています。

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did a lot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い donA 2「~する(こと·物)」 1odpid ofaoso

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did a lot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い