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数学 高校生

(2)が分からないので分かりやすく解説して欲しいです。特に、1<x<4と4<=x<7の数字と使い分け方が分からないので教えて欲しいです!🙇‍♀️

考え方(1) たとえば,3辺の長さが3,4, 9では, Check 3辺の長さが3, 4, xである三角形について,次の問いに答えよ。 三角形の成立条件 例 題 125 (1) xのとり得る値の範囲を求めよ。 ) この三角形が鋭角三角形となるようなxの値の範囲を求めよ. 3 4 で三角形ができない。 9 三角形ができるためには, a+b>c が成り立つ必要がある。 19) 鋭角三角形となるのは, 最大の角が鋭角のときである。 最長となる辺の対角が最大となるので, 4とxを比較する。 (辺と角の大小関係はp.519 参照) b (1) 3辺の長さが3, 4, xの三角形が存在する条件は, 第3 (a, b, cを3辺の長 国のチ eさとするなら a>0, これより,1<x<7DOSO6>0, c>0 が必要 であるはずだが, こ (2)(i)|1<x<4ゆとき,最大の角体長さが4の辺の対っれらは,三角形の成 立条件の3つの式か ら導かれる。(次ペ ージのコラム参照) 最大角をみるために xく-V7. /7<x は,場合分けが必要 3+4>x x+3>4 tot> 焦である。それをαとすると, α<90°どなるため にば、 x+3-4° 2.x-3 x+3-4>0 COS Q= これら言に これより, これとTsr<4 より,/7<x<4 -つd 一般に (i) 4Sx<7 のとき! 最大の角は長さがxの辺の対 である。それをBとするど, B<90°となるため には, Aが鋭角 →8+c>a を用いてもよい。 3+4°-x? Cosβ= 一つい 3°+4°-x>0 2.3.4 「これより,-5<x<5 d のきの大 4Sx<5 V7<xく5 これと 4Sx<く7 より, ー0となり 乗で、よって,(i), (i)より, 8コ3 5引 Focus a+b>c a, b, cを3辺の長さと する三角形が成立する条件 6+c>a → la-b|<c<a+b c+a>b 。 ce Aが鋭角 Aが直角 Aが鈍角 cos A>0 一→ 6°+c°>α° cos A =0 → 6°+c°=a° 6°+c<a すい cos A<0

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英語 高校生

1枚目が問題文、2枚目の(B)のカッコに下の選択肢から当てはまる英単語を選ぶ問題です。 解答お願いしますm(*_ _)m

次の英文(A)の内容を要約して英文(B)を完成させるには、③~ の (o)の中にはどの語 句が入りますか。もっとも適当なものを①~4の中から1つずつ選びなさい。 auon which A job interview can be one of the most stressful experiences you ll ever nave, especially the first one. What should you expect when you ve been invited for an interview? While it's impossible to *"predict exactly what you will be asked, many Japanese companies take a rather *"formulaic approach. It would be in your best interest to become familiar with this approach. in 2020 P BSCamaG Use of First, you will likely be asked to introduce yourself. It's a good idea to keep your answer fairly short and to the point, without getting into too much detail. In addition, you will almost certainly be asked why you want to work for the company. It's very important that you prepare carefully for this question in advance. Your answer representS an op opportunity to make a strong impression on the interviewers by showing your in-depth e Cop knowledge of the company and stating clearly why the company best fits your qualifications, skills, and long-term goals, You should also be prepared to discuss your strengths and weaknesses. You're advised to **emphasize your strengths without sounding *overconfident. If you're asked about your weaknesses, mention one that isn't related to the pe0 position. For example, admitting that you're not a good public speaker probably won't hurt your chances of being hired as a software engineer. At the end of the interview, you may be asked if you have any questions. It's a good idea to prepare some questions in advance in case this opportunity arises. Questions such as career advancement opportunities questions. Finally, end the interview in a polite manner by standing, stating that it was an honor meeting everyone, and bowing. If all goes well, you'll hear from them again soon. Good luck! 295d sldsaus *formulaic:型にはまったesb je9108) and working hours are suitable meoもの never make thisworld peaceful *predict:予測する *emphasize:強調する *overconfident:自信過剰な motivna 【令和3年度 第66回 1級]

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英語 中学生

至急お願いします

3 3年A組の放送部員のサキ (Saki)とジョン(John), コウタ (Kota)の3人が,文化祭 (school festival)に校内で放送するラジオ番組 (radio program)の制作について話し合っ ています。 英文を読んで, あとの各問い (問 1~問3)に答えなさい。 注) Saki: We are going to make a radio program and *broadcast broadcast. ~を放送する it at our school festival on October thirtieth. John, please write the main points in youy notebook. John: OK. o09e Saki: Thank you, John. Well, what kind of radio program can we make? odsvert s9 は 579d" g des John: I want to make one -with many *contents. For * content(s)内容 example, a program with music, talking, news, and d SO on. 9w Kota: I agree. I sometimes listen to the radio. In some radio programs, people just talk and don't play music. I can't enjoy that kind of radio program. So I think we should have both music and talking in our 中で mom program. き aiw eaurda.Tassfy 0 3802 8 3.00l03idt 1 sn Saki: I think so, too. But different people like different ow music. Some people like old songs, and others like owtno popular songs. What should we do aboutit? 20 。 John: How about playing different kinds of music? For example, we can play old songs in the morning and popular songs in the afternoon. Then a lot of people 0ns can enjoy the music in our program.ast oot のdera da.0 del Saki: That's a good idea, Let's get some CDs. And between music, we talk about some *topics, right? topie(s) 話題 o Kota: Yes. And we can have some *guests for the talking * guest(s) ゲスト time. One of our teachers or some of our friends can be our guests. John: OK. What about news? Anyinteresting news?

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英語 高校生

解答を教えてください!

dgadoxsca Divdentan |C Listening for details :Listen to the statements and answer T(true) or F(false). oro Comprehension, A Reading for main ideas:Choose the best answer. 1. What is the main idea of the passage? The importance of verbal language. ⑤ What non-verbal language is and its role. lgpsow so ne daus budoses td ah ne rdaqusd in eds s ta nm ugast tas bomno How cultural factors cause misunderstandings. Tleroipast A 10vo 2. The meanings connected to body actions are @ natural and we cannot control them b learned from when we are born © partly natural and partly learned dalidty ne B Reading for details : Fill in the blanks with the words in the box below, an en choose the correct title for each part. >A waiter (1. coffee all over a woman, but the woman said, “thank you Part 1 very much!” to the waiter. > We can understand the woman was (2. ) with the waiter because of the Spto way she looked at him and the voice she used when she talked to him. Hw mee > If we want to understand other people's (3. them but also pay attention to how they talk. Part 2 ), we have to not only listen to anal > Non-verbal language conveys 65 percent of the social meaning of (4. Tslimie ) language. ), and we sometimes use it unintentionally. > One part of non-verbal language is (5. > Another part of non-verbal language is (6. when they are born. Part 3 ), and people start to learn it > Each culture has its (7. verbal language. ) way to express social messages by using non- dt cbad wol bluow uoy busi > By realizing the importance and meaning of non-verbal language, we Part 4 can not only understand the messages from other people better but also understand the messages we are (8. ) to people from different cultures. Titles Different Meaning of “Thank you very much!” D The Importance of Understanding Non-Verbal Language Two Parts of Non-Verbal Language O What Is Non-Verbal Language? Words angry / intentions learned / natural/ own sending / spoken/ spilled Jud 2290 ce 1. ( へ

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英語 高校生

ここの3問を丁寧に並べ替え後の分も込で教えて欲しいです🙇‍♀️

(000● Tadi fon to deblqond asmo on o 3d) 次の英文がそれぞれ完成した文になるように、 その文意にそって 1~5を並べ替えなさい。 そして 2 番目と4 番目にくるのに最も適切なものを一つずつ選び, その番号のマーク欄をぬりつぶしなさい。 風のない穏やかな日で, その静かで美しい湖には、,多くのボートが湖面に浮かんでいた。 意 As it was a windless day, the lake was calm and beautiful(S). (よそ) ime L on 2 floating s3 many boats odt ni ylhss mot e12 番目 dond emoo inu oto 4 番自 utace thating Oん Many buats. 4 with 5the surface いth the suitare thating on many botsaom oy ナナミがどうしてもアメリカの音楽大学で勉強したいとせがんだので, 父親はそれを許した。 After Nanami insisted on studying at the music college in ( 3 the U.S., nia 1ofio dose wond 3 番目 0 しさ n6h ilet terl T 1 her 2 her father 4 let 5 go ne. 90 the Us, et Mg tha 4番目|の る。 ジェーンは誰かが自分の名前を呼ぶのが開こえたので、 部屋の外に出てみたが, そこには誰もいなかっ J1gfidw た。 ALdad sodst 215 ), she went out of the room, but she found nobody there. 160GY 2'3 wa sti gniub 6O10M iaiv ot gigg 2番目 ふ >こ回 玉味 When ( 1 call 2 someone 3 her name 5 Jane heg yhhesn orit mi velq notblido vm alidyr gaiqqe gnibg callisone 0he intie 4 heard 4番目|0 のNの の の OH

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