なぜcだけ範囲が違うんですか！教えてください!!

V 14 整数の種々の問題 Example 14 ***** a,b,c をそれぞれ1桁の数として, 3桁の数をabc と表記するとき, 7進法 で表すと3桁の数 abc (7) になり, 5進法で表すと 3 桁の数bca (5) になる数を [16 星薬大〕 10進法で表すと である。 72 解答 条件より 1≤a≤4, 1≤b≤4, 0≤c≤4 求める数をnとすると, nは7進法で abc(7) と表せるから n=a・7°+6・7+c=49a+76+c 1 nは5進法でbca(5) と表せるから ...... n=b.5² +c.5+a=25b+5c+a. ...... 49a+7b+c=25b+5c+a c=12a-9 ① ② よって 24a-96-2c=0 整理すると 2 (12a-c)=96 2と9は互いに素であるから, 6は2の倍数である。 また, 1≦b≦4 であるから 6=2,4 [1] 6=2 のとき 12a-c=9 より Practice 14 ***** 2 0≦c≦4 より α=1 このとき c=3 [2] 6=4 のとき 12a-c=18より c=6(2a-3) よって,cは6の倍数であり, 0≦c≦4 より c=0 このとき, 6(2a-3)=0 を満たす整数 α は存在しない。 [1], [2] より a=1, b=2, c=3 したがって 求める nは①より n=49・1+7・2+3=66 答 key 7 進法で表された 数 abc (7) は, よって α=1,6=2,c=3 a72+6・7+c er

はてなのところなぜどうなるのかおしえてください!!🙇🏻‍♀️

Example 9 ***** (x2+2√2x+3)を展開したとき､xの係数を求めよ。 解答展開式の一般項は 5! p!q!r! 5! -(x²)(2√√/2x)²3"= (2√2)93x²p+q p!q!r! ただし, b,g,r は p+gtr = 5 を満たす0以上の整数であ (2) る。 xの項は 2p+g=6のときである。 ←?? これを満たす0以上の整数, g の組は THEYON (p, q)=(0, 6), (1, 4), (2, 2), (3, 0) p+g+r= 5 で, rは0以上の整数であるから, (pg) = (06) は不適である。 よって, p+g+r=5 より (p, q, r)=(1, 4, 0), (2, 2, 1), (3, 0, 2) ゆえに, 求める係数は 5! 1!4!0! 5! • (2√2)^3°+ 2!2!1! = 320+720+90 =1130 答 ･(2√2)^31 + 5! 3!0!2! ・(2√2) 32 [13 大同大 key (a+b+c) の展 開式の一般項は n! p!q!r! -a²b³c² (p+q+r=n)

一枚目　長文 二枚目　問題 三枚目　答え 二つ聞きたいことがあります ①写真全部使います！えっと…なんでこの記述が答えになるのか写真の問題について解説お願いしたいです。 ②長文の写真についてです。上にある付箋のところらへんにserve themselvesと書いてありま... 続きを読む

14 I of Po To themselve) serve 名訳 詞 AND INFRASTRUCTURE Reading 目標 20分 速読問題 次の英文を2.5分で読んで、 1. の問いに答えなさい dran. (the) A new *retail concept was introduced in the United States when the first self-service *grocery store named Piggly Wiggly/opened in 1916 cenfiones bring a shopping list to a neighborhood store and wait while a store clerk collected the containers. items they wanted and measured out products like *flour and rice from large (一方で)⇒新しい (2) On the other hand, Piggly Wiggly gave customers baskets and asked <食べ物の状態で) them to serve themselves. They filled their baskets with packets of flour and rice, The shelf ASSA 複数形 JSBURCTC- DRESS K (食料品) cans of vegetables, and other groceries from the store's shelves. 1916/ Before that, customers used to (3Sales at Piggly Wiggly were higher than at other stores, I& 190 19901990 Jasty & eaim 'no sow owi Jasl lliw elaz odT (一般的に) typically bought more when they *made their own selections. th in order to draw customers to their products EI 19dmsvol JU (棚) Soon Piggly Wiggly AMDES (まねする) (42) anel hiny-1sque euiq esment zasip sms hoomal (Copy) 10 expanded to become a chain of stores, and other markets copied the self-service (拡張する) (4) 1 retail [rí:teil]: 9 make a selection : 2 grocery store : 12 aspect [æspekt]: 15 a mibns2 vol (製造会社) business. For example, food manufacturers started using more attractive (魅力的に) 29anol yuleup-dyid bemoqm) model. The modern supermarket was born.) 02.0re of beinuoseid Jo labom Jestal erit of egnerlaxe ens] It influenced not only the way people shopped but also (5 other *aspects of the food *** s. because customers 100-yabirt no quitate ahoge tol esment Iripiew-trip packaging Seunitnoo elsa ari lliw gnal woH dolo to bas sdi is gaini (168 words zabiy zon lunu 4 flour [fláuǝr]: yo larw zranal modił w 250l baroqul

一枚目　長文 二枚目　問題 三枚目　答え Q:なぜこの答えになるのかとその理由まで教えていただきたいです。 よろしくお願い致します‼︎

INDUSTRY, INNOVATION AND INFRASTRUCTURE Reading 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 Smartphones, tablets, and laptops are getting *thinner and lighter than ever before. However, in the future, you might not need to carry any gadgets around with you. If designers have their way, you may just need to wear a pair of "virtual goggles" instead. (2)Scientists are testing "prototypes at the moment, (3 though it may be some 5 time before they're actually on store shelves, These goggles will act like a computer screen and display information and gnibso biqef entertainment from the Internet. So, (5 when you are sightseeing, you'll be able to see 目標 20分 information about a famous building in front of you. Or you'll be able to get a *review vud of vere eis istil zanorghome to a of the restaurant menu you're looking at. The goggles will have GPS, so you'll be able nglasbah bus siquie 10 to *stream directions to a party or *locate a nearby coffee shop. They will also have a Writing bium phlyn Jeol/ have that built in, too. alidoM A camera to take photos, and you won't need a cell phone anymore. The goggles will 000.887 0 19 CAN DO (mm 7 juoda) bhow art al zomidd ¹thin [Oín] 4 prototype [próutoutàip]: , 10 stream [strí:m]:･･･を同時再生する 10 locate [lóukeit] : ... を突き止める, 探し出す yud uoy bluow lebam ribirlw.enoriqhome queria s to Isbom Jesisleri yud of raw way 1a-8 @ 2 gadget [gædzit] : *, ** 3 have one's way : 思い通りにする 8 review [rivjú:]: , olidol (159 words) (-) TAT 11-80 ya way to our worl, ritnom airt 14-8 yud boy t 000,08% 000,89% 000,TS / 1. この英文のター a. Future S b. Gadgets c. Prototy d. Virtual 読問題もう 2. 下線部(1) は! 3. 文法 下線 chなるように uh Scientists 4. 下線部(3)の toya. もっと c. ...にも 5. 下線部 (4) 1. for = 6. 下線部 (5) ますか。 7. 全体把握 (7) Sma befo (1) "Vi (3) "Vi (1) "Vi (*) If

英語のリーディングの問題を、S V O C 、（） 、→ などを書いていつも訳しています ՞ ՞ 文の構造をしっかり理解しようと思ってしているのですが、テストでだと時間的にやめた方が良いですか ?? 慣れてきたのか最初よりは書き込みも早くなったとは感じますが … ... 続きを読む

a a high school student in Japan> He is from Australia. He finds two of his friends, Hikari a (+"=> in their classroom and talks to them. of our S : Hi, Hikari, Takuma. What are you looking at? : Hi, John. We are looking at *results of a *survey about the school trip) O ↑ In the survey, 243 first-grade students(at our high school were asked the question: "Where you want to go on the school trip?" Look at this *graph. V : Oh, the most popular place is Okinawa. I understand that because we can swim in C beautiful sea and its culture is very interesting. Have you ever been to Okinawa? (1127 くどこ : Yes. I went there on an *elementary school trip and a family trip last year. My best me O s in Okinawa is *snorkeling in the sea. There were a lot of beautiful fish in the water, and S V excited when I saw them. I had a really good time during each of the trips. LEES くりつ) : I went there on the school trip when I was a second-grade student (at junior high s 12x During the trip, we didn't stay at a hotel. <+1>> : Oh, really? Where did you stay then? Sone houses くどこう : We visited some houses and stayed there. I stayed at Mr. Higa's house. He and his Cat=r=" were very kind and did many things for me. For example, they took me to some V places and made me some traditional dishes. I also had an experience (of taking care サトウキビ cane in their field. I had no chance to see sugar cane before coming to that field) S very interesting. Staying with Mr. Higa and his family is my best memory in Okinaw : Wow, you both enjoyed staying in Okinawa. I have become more interested in visi 動名詞 ↑ listening to your stories. 化現在完了形 S : I'm happy about that. If you visit Okinawa, you will like it very much, too. : Well, I've heard that a lot of students go to Kyoto or Nara on the school trip. But (Y" => S SV shows that only fifty students want to go there. I'm a little surprised about that. And V is more popular than Kyoto and Nara 最上 S : Look! Some foreign countries were chosen, too. And your country is the most them all) gift no : I'm happy about that. *Hawaii is also popular, right? 自然と同じくらい SV S V : Yes, it's as popular as Nara. A lot of Japanese people go there on their trips ev S V

UP GRADE 文法問題 ①for example ②after all が誤答の理由を解説して頂きたいです。正答は④です。

811. If you learn more synonyms and antonyms, you can improve your センター vocabulary, (), you will be able to express yourself to others more clearly. ① For example ⓒ After all 3 While 4 As a result (センター試験) 805. 私は彼女のことが好きだと言ったのではない。 それどころか､彼女のことが好きじゃな いと言ったのだ。 806. 彼女は確かに教養があるというのにはほど遠いが､しかし行儀はよい。 807. 平和を望む気持ちはほとんどすべての人類に共通している。 しかし恒久平和を達成する のが難しいことを歴史は示している。 808. その仕事はあまりおもしろくなかったが､その一方で給料はよかった。 809. ペニーは決して貧しくない｡いやそれどころか彼女はかなり金持ちである。 810.A : メアリ,週末の予定はありますか。 B: いいえ、 トム。実は今週末はすることが何 もありません。 あなたは何をするつもりですか。 811. もっと多くの同意語や反意語を身につければ、語いを増やすことができる。その結果、 もっとはっきりと言いたいことを人に伝えることができるだろう。

このinは関係代名詞にくっついていますが、何のinですか？log inのイディオムの一部だと思ったのですが、下の語句でlog単体で取り組むという意味を持つようだったのでわかりません。

2 And there are not many examples [in which companies are logging V S better sales or promotions]," he said. SV 和訳 そして売り上げや販売促進の改善を記録している企業の例もあまり多くはな い」と彼は言う。 語句 log 「取り組む」

英語⌇中2⌇読解 画像の印をつけている部分が分かりません… them も it も何をさしているのか何度読んでも分かりません🤧 分かる方 解説お願いします !!

次のキング先生 (Ms. King) によるスピーチの原稿を読んで、あとの問いに答えなさい。 (112) S どのように V Hello, everyone. Now, many people think about their health a lot and do many things for good health.> D どのように いつ 112 For example, some people try to eat a lot of vegetables every day, and other people *exercise at sports gyms> However, some people, especially young people, don't do very important things for good health. Today, I'm going to talk about two things to do for good health) Tatt 5 どのように S The first one is to have *enough sleep. When we are *awake our bodies work hard.> That *hurts many parts of our bodies, *While we are sleeping, our *brains make *growth hormone and "*repair" them with it. That means we need the time for sleep to become fine. Doctors say we should sleep for about eight hours every day, but many young people don't do that. Look this graph with

中2 ⌇英語⌇読解 について 赤で印をつけてる、That は何を示してますか﹖ ※ で印がついている hurts は傷つける という意味

次のキング先生 (Ms. King) によるスピーチの原稿を読んで、あとの問いに答えなさい。 <いつ> どのように V Hello, everyone. Now, many people think about their health a lot and do many things for good health.> E' = 例えば For example, some people try to eat a lot of vegetables every day, and other people *exercise at sports gyms> どのように いつ S L' However, some people, especially young people, don't do very important things for good health. Today, I'm going to talk about two things to do for good health) ひとつめは The first one is to have *enough sleep. When we are *awake our bodies S parts of our bodies. *While we are sleeping, our *brains make *growth hormone and "*repair" them with work hard. That *hurts many

今週末に英検二級の試験を控えています。 このライティングを添削して頂けると助かります

4 ライティング orioraticleba ●以下の TOPIC について, あなたの意見とその理由を2つ書きなさい。 ●POINTS は理由を書く際の参考となる観点を示したものです。 ただし, これら 以外の観点から理由を書いてもかまいません。 ●語数の目安は 80 語 ~100語です。 ●解答は,解答用紙のB面にあるライティング解答欄に書きなさい。 なお,解答 欄の外に書かれたものは採点されません。 Leath ●解答が TOPIC に示された問いの答えになっていない場合や, TOPIC からずれ ていると判断された場合は, 0点と採点されることがあります。 TOPIC の内容 をよく読んでから答えてください。 TOPIC Some people prefer to buy food produced in their local area. Do you think more people will buy locally produced food in the future ? 10. mest 01 Yes POINTS ●Local economies ● Safety ● The environment nised ads to costa adi no amoldong at