この問題でなぜ231□□の並びが整数の最後になるのですか？なぜ23104ではいけないのか教えてください🙇🙇

25 本例題 6 数字の順番 5個の数字0,1,2,3, 4 を並べ替えてできる5桁の整数は, 全部で 個 あり、これらの整数を小さい順に並べたとき、40番目の数は 口であり、 92104は 番目の数である。 (四日市大) 基本 14 重要 20 OLUTION JHART 数字の順番 要領よく数え上げる (イ)一番小さい 10234 から順列 (整数)の個数が 40個になるまで適当なまとまり ごとに個数を数えていく。 一まず,万の位の数字を1で固定した場合の整数を1口□□口で表し, 条 件を満たす整数の個数を考える。 (ウ)) 32104 より前に並んでいる順列(整数)を1□□□ロ, 3 0□□□などのよ 五以下 こは4 いきる。 うに表して,個数を調べる。 解答 万の位は0以外の数字がくるから,その選び方は 4通り そのおのおのに対して,他の位は残りの4個の数字を並べて なる地 合最高位の条件に注目。 数に等し 4!=24(通り) inf. (ウ)について 32104 より後ろに並んで る順列(整数)の個数を べてもよい。 4×24=96 (個) よって,5桁の整数は全部で この0。 ) 小さい方から順番に の形の整数は う。 4!=24(個) 3!=6(個)[計 30個] 3!=6(個)[計 36 個] 2!=2(個)[計 38個] 4 の形の整数に とき 20口ロロの形の整数は 4!個 21口ロロの形の整数は 230口口の形の整数は 40 番目の数は, 231口□の形の整数の最後で ウ) 32104 より小さい整数のうち,小さい方から順番に 1口ロロロ, 2口ロ 30口ロロ, 31□□□の形の整数はともに 320口口の形の整数は 32104 は320口ロ口の形の整数の次であるから 4!×2+3!×2+2!+1=63(番目) 34口ロロの形の整数に 3!個 324口口の形の整数に 2!個 23140 321口口の形の整数 32104, 32140 であるか 32104より後ろには, 4!+3!+2!+1=33 (個 の順列(整数)がある。 よって 96-33=63 4!個 ーニ Iロロの形の整数はともに き 3!個 2!個 N PRACTICE… 16

「I told you how sweet this fruit was.」 「He told me how hard he studied.」 なぜ前者には語尾に「was」が付くのに後者には付かないのですか？違いを教えてください🙇‍♀️💦

至急!!!!! この問題を教えてください🙏

読解力をつけよう 516 Words 目標6分 ◆次の英文は、高校生の次郎(Jiro) さんが、 英語の授業中に自分の祖父(grandfather)について発表したもので す。これを読んで、 あとの間いに答えなさい。 My grandfather is great. I'm going to talk about him. He always tries to study new things. After retiring from his job, he has studied sign language, calligraphy and so on. Now he is studying how to use computers. He also studies English hard. He likes studying very much. First, I'll tell you about him and computers. There was already one computer in my house, We used it to do many things. But my grandfather never tried to use it. One day I got a ticket for a trip 5 for him on the computer. He said, “Thanks. I'm surprised. It is very easy to get a ticket on the R (徳島改) computer!" I said, "Yes, it is." A few weeks later, I was using the computer to make my report with some pictures. My grandfather came to me, and said, “You have made your report with pictures. It is very good and beautiful." OHe became interested in computers. 10 He started to study how to use computers in a class for senior citizens, and bought some books about computers. He also bought a new computer. He enjoyed the class, and he studied for about two hours every day. When he first began to study, he couldn't use computers well, so he asked me many questions. Now he can use computers better than me and enjoys using them. He can get tickets for his trips or look for good hospitals on the Internet. On the computer, he can make leaflets with pictures and is also going to make a web page for the senior citizens group in his town. When he showed the leaflet he made to the members of the group, 15 they said, “You've made it! It is very wonderful and beautiful." He was very happy to hear that. My grandfather said to me, “I'm going to make a web page for the group. I want to study more about computers to make a good web page. When we learn more, we can do more.” Now he is trying to 20 make it. Next, I want to tell you about (2my grandfather and English. He traveled to Canada with his friends last year. When he came back, he showed me many pictures of Canada, and said, “I enjoyed visiting many beautiful places. When I went shopping, I tried to use English. It was difficult for me to speak English, but I tried it. I was very happy because the clerk understood me. If I can speak English 25 better, I can enjoy the trip more. I've decided to study English every day.” He studies English very hard. He repeats English words and sentences he has learned from books and CDs. He said, “This is a good way for me to study English. I want to go to many countries and talk with people in English." He said, “I like and enjoy studying new things because I can get different ideas and new information. 30 That makes my life fruitful. It is interesting for me to study.” I think his words are true. I want to enjoy studying new things as he does. | retire (retiring) 退職する senior citizen (s) 高齢の人 sign language 手話 calligraphy 書道 report レポート leaflet(s) ちらし web page ホームページ clerk 店員 sentence(s) 文 fruitful 実り多い

timeは可算名詞か、不可算名詞か教えてください。

解説お願いします！🙇🙇🧐

1. の角デク ABCDの面積 Aui F H

解き方と答えを教えてください🙇🙇

エ。 の の角刊y ABCDの面議 Aui

(5)の電気量保存則でどうしてかかる電圧がともにEとなるんですか？

A (等号は Rーrのとき) E2 P=IV= (R+r) E2 R+2r+ R (R-+4r -の消費電力が最大になるとき 『R-=0 より P-V-RE T安+ャ RE VR R=r(QB中 このときの消費電力 Pは P=E 4r - 大第。 4CT,--5 そのときの R=r Q=CiV Q2= CzV2 T,:ER Rtr Vi+ V2=- R -E R+r -Qi+ @2=-(C,E+C»E)_1 ここで,Ci=C, Ca=4C とすると, ①, ②, @式より -CVi+4CV2=-5CE ブラフをかくときは, DAをこえないこと また、の式より V-RキャE-V これをの式に代入して-CV+4c(p8-v)--sCE る。 -E-V. R+r R R+re-V==-5CE これを解いて tp)e-9R+5rp ュ=1+5(R++) <E 5(R+r) R -E 9R+5r 4R+5r -E=- -E V2= 5(R+r) 5(R+r) 合※C Pの電位が負で P。 より低いので、は負の値 である。 R+r ゆえに,D, ②式より 4R+5r 4CE (C]#C* 9R+5r .. CE [C], Q2=ー可(R+r) Q= 5(R+r) 物理重要問題集 129 R」 4F plant to Craures y and August blow wing within the This is

(１)の答えを教えてください！

さとし 「内容理解聡が書いた観光案内の英文を読んで、あとの問いに英語で答えよう。 Shizuoka is one of the best places if you want to see beautiful views of Mt. Fuji. It's the highest mountain in Japan. Shizuoka is also famous for tea and fruits, such as strawberries. A large lake, Lake Hamana, is in Shizuoka, too. You should also try unagi there. 5 Please come and enjoy beautiful views and delicious food! (1) What is the highest mountain in Japan? Eサポート - It's be famous for ~は「~で有名で ある」という意味だね。

解答は③です。②ではダメな理由を教えてください。また、②を英文に直す時、(A)のどこを改めるといいのでしょうか。

During most of the year, there was no way to keep dairy products fresh. So you got used to drinking sour milk and eating spoiled būtter. Foods that spoiled could not be shipped far, so you could only eat fruits and vegetables that were grown near where you lived. Even then you might not have eaten many fruits and vegetables, because these foods were( often considered dangerous to the health. 多 て3)

添削お願いします 上手く言いたいことが言えませんでした💧

A boy telleda man to lend some books in the beok shelf. The man gave the boy three boeks , The man wondeied whati the boy did. The boy oudeied wheti the boy did. and the man taking thuit from the Was Was 47 surprsed by using three books