ここ解説込みで教えてください🙇‍♀️

大きいかで場合分け PS 2次不等式の解は,数直線と同様, 左側が小さい値, 右側が大きな値と覚えよう。 ■練習27 2次不等式 2.x2+3ax-2a>0 を解け。 ただし, αは定数とする。 大士) 〈〈大川 > 〈北海道工大) Challenge 1

(3)についてです Q=IVから vBLcosθ/R･vBLcosθって解いたんですけど、なんでこれだとダメなんですか？？

456 磁場中の斜面をすべり下りる導体棒■ 図のように, 磁束密度Bの鉛直上向きの一様な磁場中に, 間隔Lの2本の 平行導体レールが水平に対して角で固定されている。 2 本のレールは上端で導線により接続されている。このレール 上に水平に長さL, 質量m, 電気抵抗Rの導体棒 PQ をおく。 この棒に大きさの初速度をレールにそって下向きに与え ると,その後棒は水平を保ち、 一定の速さv のままレールに B Vo そって降下を続けた。 レールと棒との摩擦および棒以外の部分の電気抵抗はないものと し,重力加速度の大きさをgとする。 (1) 棒を流れる電流の大きさと向きを求めよ。 Iは vo, R, B, L, 0 を用いて表せ。 (2) 棒にはたらく力のつりあいから速さ vo を, R, B, m, g, L, 0を用いて表せ。 棒で単位時間に発生するジュール熱Qを, R, B, m, g, L, 0 を用いて表せ。 (4) このジュール熱は何によって供給されているか。 (5) 磁束密度Bの向きが鉛直下向きのとき, (1)~(4)の結果はどう変わるか。 <<-449

（1）（3）（14）の英文を正しい順番がわからないので並び変えてほしいです。お願いします。

https://olt.toshin.com/OLT/student4 R/Student/OACT Test Performance.aspx?ctestid=1898511201&ctestgroupid=4554&ctestattempt=2&cbigquestionnumber=3&grade=SS&kaitopattern-0 【3】 与えられた語句を意味が通るように並べ替えて最も適当な文を完成させ, 空欄に 当てはまるものを答えなさい。ただし文頭の文字も小文字になっている。 (1) Reading is not "interactive" with a set of rules or options, as games are; 2 reading is actual collaboration with the writer's mind. 正解 あなたの解答 1 8 Deverybody no up (2) [3] animals 4 the which (3) by [5] 4 you mean 7 you 6 [2] (2 is (5) not ⑧ wonder 3 5 3 it to 14 3 3 5 7 7 [4] language after all. 6 1 2 distinguishes 3 from 7 1 1 6 thing us is 28 2 2 [6] 9 3 3 could 3 explain [10] 9 6 6 those words 6 what 11 7

数IIの問題です。466が何を言っているのか、どうしてそう解くのかがわかりません！！教えてください！

発展 ✓ 466 0≦x<2π のとき, 方程式 cos 2x+2sinx-a=0 が次の条件 を満たすように 定数αの値の範囲を定めよ。 (1) 解をもつ (2) 異なる4個の解をもつ ヒント 466 sinx=t とおくと, cos2x+2sinx=-2t2+2+1 となる。 -1≦t≦1 において, y=-2t2+2t+1 と y=a のグラフについて考える。 ③

これらの解き方を教えてください🙇🏻‍♀️

☆次の英文を読んで、 名詞的用法には「名」、 副詞的用法には 「副」。 形容詞的用法には「形」 と書きなさい。 (1)I want to visit Kyoto this summer. (副名う > (2) This is a book to read in English class. ( JAV (3) She went to the park to play tennis. (名副) A (4) He has something to tell you. (形 (5) To speak English well is difficult. ( 形名 ) <(6) I am happy to see you again. (名詞) おずいかテストいださな! (7) She has no time to watch TV. (名形) ' (8) My dream is to be a doctor. ) ) ) (9) He studies hard to pass the exam.4 ☆ (10) I have a friend to help me with homework. よくでき たいへん ちました

動詞の使い分けがわからないです😭

EXERCISE 20➤Looking at grammar. (Chart 5-6) Choose the correct completions. 1. The United States has have a population of around 325 million. an established and respected newspaper. a branch of mathematics. (2.) The New York Times: C:C/DC Caree 3. Statistics is/are 4. The statistics in that report on oil production :C:MKEKECRETKEY) incorrect.* 5. Fifty minutes is are the maximum length of time for the test. 6. Rabies (is) are an infectious and often fatal disease. The blind wants / want us to treat them the same way we treat everyone else. talking with people 8. French is are somewhat similar to Spanish, isn't it / aren't they? The French is are proud, independent people. 10. Does/Do the police have training in mental health issues? 1. Thirty dollars is an unreasonable price for that T-shirt. 12. Four hours of skiing provides / provide plenty of exercise. EXERCISE 21 ▸ Game. are (Chart 5-6) Work in teams. Choose the correct words (or numbers). Then complete the sentences with is or are. 1. The Scots /The Irish The English and Cambridge. 2. Statistics/Linguistics / Physics 3. Diabetes/Measles / Mumps 4. English / French / Afrikaans 5. People from Canada. called are famous for educational institutions like Oxford the study of the structure and nature of language. a blood-sugar illness. the official language of Namibia. Canadas/Canadians / Canadese. covered by water, but drinkable. 6. Approximately 60% / 70% / 80% of the earth only 1% / 10% / 20% of the earth's water 7. 312 x .5+ 100 227/275/256. 8. The United Arab Emirates/The Netherlands/The Philippines Hemisphere (i.e., north of the equator). in the Northern 9. Fish/Whales / Cattle not mammals. 10. Five hundred thousand + five hundred thousand ten hundred / one million / one billion. 11. Macy's/Harrods / Hudson's Bay a department store that began in London. *Statistics is singular when it refers to a field of study (e.g., Statistics is an interesting field of study.). When it refers to particular numbers, it is used as a count noun: singular one statistic (no final -s); plural = two statistics. For example, This

ハルトはこの本に興味を持つでしょう。 という文で、なぜinteresting ではなく、interested を使うのですか？ 解答…Haruto will be interested in this book.

exercise s1教えてください！

7 Not having finished her homework Lucy is still ン Exercises 1 Fill in the blanks so that each pair of sentences will have a similar meaning. Use "done," "not V-ing," or "having done." b enitte e.g. As I was shocked at the news, I didn't feel like eating anything. Shocked at the news, I didn't feel like eating anything. 01 1. Jack was given a bad grade, so he had to take extra lessons. Jack had to take extra lessons. 9 2. My sister wasn't busy, so she asked if she could go shopping with me. , my sister asked if she could go shopping with me. 3. Kate has visited many tourist sites, so she can give you some useful advice. Kate can give you some useful advice. 4. We had lunch at the cafeteria, and then we went back to the library. , W we went back to the library. T (2) Tell your classmates about something you did on the weekend. Use "done," "not V-ing," or "having done." e.g. Not having any plans on Sunday, I took a walk along the river. Having walked for two hours, I came across some fisherman cooking ayu over *charcoal. Te

地学基礎です。大森公式のD=kTのこの式のkは何を表しているのか教えてください🙇‍♀️

英語で出てくるAreとDoの違いってなんですか？