③だけなぜ ◯に入るのは何通りか。　 というのを求めてるのでしょうか？ ①〜③の考え方のコツを教えて欲しいです…

9個の数字 2, 2, 2, 2, 3, 3, 3, 4, 4のうち4個を使って4桁の数を Check 例題 200 整数を作る問題2) 作るとき, (1) 全部で何個の整数ができるか. 「2」は4回まで, 「3」 は3回まで, 「4」は2回までという制限があス このような場合は, 丁寧に場合分けをして考える。 考え方 2, 3, 4から重複を許して4回とるのとは違う。 (1) (i) 4個の数がすべて同じ場合({O, O, O, ○} ○に入る数は2のみだから, (i)4個中3個の数が同じ場合 (○, O, O, △} ○に入る数は2か3だから, △に入る数は○以外の2通り 2222 の1通りのみ 解答 1通り ○は2か3. 2通り △は○以外のとちち 全部で4つ か。 選んだ4つの数の並べ方は, 通り a中で Oぜら7 4つの数の順序を える。 (同じものを含む を歩た 3! 4! =16 (通り) したがって, 2×2× 3! ( 4個中同じ数が2個, 2個の場合(O, O, △, A} 0, △に入る数は, 列) 3C2 通り 4! 2!2! 選んだ4つの数の並べ方は, 通り 本 818 ISTS (v 4個中2個の数が同じで, 残りは違う数の場合 したがって, 4! 2!2! 3C2× =18 (通り) O〇に入る数は, {O, ○, △, 口} C」 通り 選んだ4つの数の並べ方は, 4! 21通り C,×=36 (通り) したがって, 4! よって, (i)~(v)より, 2! 1+16+18+36=71 (個) 3の位都

これの（②）に一語を文章から抜き出していれるんですけど、quickはだめですか？ 答えはearlyでした。

When I first moved to Japan, my new life was like an adventure, and full of surprises. Ive forgotten a lot of small things, but I'll never forget the first party I gave. 1was teaching English at a university in Japan. I decided to have a party for some Japanese students at my apartment which was near the school. The party was at 7:00. I was rushing to get ready, cleaning the room, checking the food, and so on. And finally at about 6:45, I was about to take a quick shower and get dressed. Perfect timing, I thought. But just then, the doorbell rang. The students, in one big group, were already at my door! In America nobody comes early, and in fact, most people come a little late on purpose, usually alone or in pairs. We call Oit being “fashionably late." I had to ask them to wait outside for about 15 minutes. “The party starts at 7:00!" I said, This was a real life lesson for them and for me about cultural differences. They learned they should not come to my parties ( ② ) again, and I learned I should be ready a little (2 )just.in.case. So at 7:00, everyone came in, with my second surprise. ③They showered me with all kinds of presents! I was happy to get so many presents, of course, but I really didn' t want them to come together. I was very busy because I had to find vases for the flowers, bowls for the snacks, and try to say Thank you' for their gifts. People usually take something likea bottle of wine to an American-style party. But I felt. more. appreciated by my_guests in Japan. It was more like my birthday or Christmas than a simple homeparty. FinallyI sat on the sofa and talked with them. Everyone was having a good time. Though I have lived in Japan for more than ten years, I m still surprised at many things. Life is full of surprises.

こちらの回答であっているか確認お願いします！ d.c.c.b.a

Questions 46--50 refer to the following invoice, e-mail and voucher. onnA FORESTS OFFICE SUPPLIES on Voucher Tel.: 289-467-8902 2 Baymax color printers for the price of 1. Invoice No.: 08-671-555 This voucher is valid until January 31. Bill to: Mr. John Scott FORESTS OFFICE SUPPLIES Units Unit Price Amount Description $199.99 $399.98 $149.94 2 Baymax color printer $24.99 $65.99 $3.99 6 CNG copy paper 3 $197.97 Lennox metal bookcases 8 $31.92 Millar transparent tape $779.81 $20.00 Sub Total 49. How much will the new invoice to charge? (A) $399.98 46. How much was John Scott charged? (A) $399.98 (B) $779.81 (C) $20.00 (D) $799.81 *f you have any questions about this invoice, please contact Jennifer Fairbanks. Shipping Total $799.81 (B) $599.82 (C) $779.81 (D) $799.81 OBC0 のBC0 From: John Scott 47. Who is most likely in charge of invoicesat Forests Office Supplies? 50. What will John Scott send with this e-mail? (A) A voucher (B) A printer To: fairbanks@forests.com Date: Jan 25 (A) John Scott (B) May Concern Subject: Invoice error (C) An invoice (D) A copy paper (C) Jennifer Fairbanks Dear Ms. Fairbanks, (D) Sandy Ridge のBC0 My name is John Scott, and I ordered some products from your online shop. I received the products and invoice, but there are some errors in the invoice. 48. What is the main purpose of this e-mail? (A) To complain about some products (B) To order more goods I received two color printers and the invoice states that the amount is $399.98, but I used a voucher. I will attach it to this e-mail for confirmation. The amount of the o (C) To reporta mistake in an invoice (D) To point out a mistake in calculation A6C0 Baymax color printer on the invoice is wrong. o) Please check your records and correct the error as soon as possible. Regards, John Scott

d.c.c.b.a であってますか？ お願いします！

Questions 46--50 refer to the following invoice, e-mail and voucher. onnA FORESTS OFFICE SUPPLIES on Voucher Tel.: 289-467-8902 2 Baymax color printers for the price of 1. Invoice No.: 08-671-555 This voucher is valid until January 31. Bill to: Mr. John Scott FORESTS OFFICE SUPPLIES Units Unit Price Amount Description $199.99 $399.98 $149.94 2 Baymax color printer $24.99 $65.99 $3.99 6 CNG copy paper 3 $197.97 Lennox metal bookcases 8 $31.92 Millar transparent tape $779.81 $20.00 Sub Total 49. How much will the new invoice to charge? (A) $399.98 46. How much was John Scott charged? (A) $399.98 (B) $779.81 (C) $20.00 (D) $799.81 *f you have any questions about this invoice, please contact Jennifer Fairbanks. Shipping Total $799.81 (B) $599.82 (C) $779.81 (D) $799.81 OBC0 のBC0 From: John Scott 47. Who is most likely in charge of invoicesat Forests Office Supplies? 50. What will John Scott send with this e-mail? (A) A voucher (B) A printer To: fairbanks@forests.com Date: Jan 25 (A) John Scott (B) May Concern Subject: Invoice error (C) An invoice (D) A copy paper (C) Jennifer Fairbanks Dear Ms. Fairbanks, (D) Sandy Ridge のBC0 My name is John Scott, and I ordered some products from your online shop. I received the products and invoice, but there are some errors in the invoice. 48. What is the main purpose of this e-mail? (A) To complain about some products (B) To order more goods I received two color printers and the invoice states that the amount is $399.98, but I used a voucher. I will attach it to this e-mail for confirmation. The amount of the o (C) To reporta mistake in an invoice (D) To point out a mistake in calculation A6C0 Baymax color printer on the invoice is wrong. o) Please check your records and correct the error as soon as possible. Regards, John Scott

短文です。 お願いします。

Carleton Hotel in California you looking 32.---a good hotel in California? 33.--- It is located and 34.--- easy access to many famous tourist sites. Are close to downtown very For more information, or if you would like to make a reservation, please visit 35.--- website ar 32. (A) across 34. (A) offering (B) of (B) offer dew (C) for (C) to offer (D) offers (D) on のBCO Q000 33. (A) Why don't you come to California? 35. (A) we (B) Guests are asked to check out before (B) our (C) us 11 A.M. (C) We are fully booked this week. (D) Carleton Hotel is perfect for you! (D) ours O0C0 ABOC

助けて下さい、至急です。お願いします 31124312 11342 になりました。あってますか？？

other house on her street. Karen's house is bigger than ( 2 whole 1 oWn 3 any 4 much My grandfather loves jogging. It rained today, but he got up ) usual. 3 by early and went jogging ( 1 as 2 ever 4 on (10) A: Susan will graduate firom nursing school next month. B:I know. She really wants to be a nurse, and now her dream will ) true at last. 2 get 1 Come 3 go 4 have (11) A: What's the ( ), Shelly? B:1 lost my purse. 1 horizon 2 3 difference 4 igure matter (12) A: It's dark in here. Could you tum ( )the light, Sam? B: Sure. 1 off 2 with 3 in 4 on (13) Jack finished ( ) his room and then went to his friend's house. cheno2 1 clean 2 cleaned 3 cleaning 4cleans (14) A: It's Tom's birthday next Saturday. Let's ) him a present. B: Good idea. 1 buy 2 buys 3 to buy 4 buying (15) A: Sean is always late,( B: Yes. One time I waited two hours for him. ) he? 1 didn't 2 isn't 3 couldn't 4 hasn't pprih2019 公盛財団は人本 検定協合 無断載複製を開にます

短文です。お願いします！！ 32 Ｃ 33 Ｄ 34 Ｃ 35 Ｂ

Carleton Hotel in California you looking 32.---a good hotel in California? 33.--- It is located and 34.--- easy access to many famous tourist sites. Are close to downtown very For more information, or if you would like to make a reservation, please visit 35.--- website ar 32. (A) across 34. (A) offering (B) of (B) offer dew (C) for (C) to offer (D) offers (D) on のBCO Q000 33. (A) Why don't you come to California? 35. (A) we (B) Guests are asked to check out before (B) our (C) us 11 A.M. (C) We are fully booked this week. (D) Carleton Hotel is perfect for you! (D) ours O0C0 ABOC

（2）です。なぜここは3で割っているのですか？

338 (2) これらの5個から3個を取り出して円形に並べる方法は何通りある 考え方(2) 異なる3個の円順列と同様に5個から3個選んだ場合も,重複する場合がある。 a, b, c, d, e の文字が書かれた王が1個ずつあるとき,次の問いに答 Check 例題 186 円順列(1) えよ。 (1) これらの玉を円形に並べる方法は何通りあるか. (2) これらの5個から3個を取り出して円形に並べる方法は何通り+. か。 (3) a, bが隣り合うように円形に並べる方法は何通りあるか。 (4) これらの玉にひもを通し, 輪を作る方法は何通りあるか、 (3) a, bを1つの玉とし, 4個の円順列を考える。 (4)ひもを通して輪を作るとき, 右のように円 順列では異なる2通りが, ひっくり返すと 同じものになっている. このような順列を じゅず順列(ネックレス順列)という. 解答(1) 異なる5個の円順列であるから, (5-1)!=4!=4·3·2·1=24 (通り) (2) 異なる5個から3個選んだ円順列であるから, a 5P3_5·4·3 =20(通り) 3 2

解答は④だったのですが、③が適さない理由を教えていただきたいです。

Vom This vase may not be useful, but, ( O for a possibility ), it is beautiful. (2 when youlook round 3 if you sell it to a stranger O to say the least (早稲田大)

並び替えお願いします

3 Grammar Check Unscramble the following words and complete the sentences. 1. The number of tourists to Japan [ continue, increase, likely, is, to, to ]. The number of tourists to Japan 2. Iwill go first [ the, in, up, unless, next, shows, Jessica ] five minutes. Iwill go first five minutes. 3. An iceberg hides nearly 90 percent of [ surface, mass, the, its, below ]. An iceberg hides nearly 90 percent of 89