最大、最小の問題についての質問です。紫のアンダーラインを引いたところにxは実数よりとあるのですが、xは実数とは問題分のどこにも書いていない気がします。どこからこれが出てきたんでしょうか？

Focus 106 第2章 高次方程式 Think 例題 49 判別式による最大・最小 **** x-1 x2+3 の最大値、最小値と,そのときのxの値を求めよ. 考え方 与えられた式を「=k」 とおき 式を整理する。 (次ページ 「Story」 参照 ) xが実数である条件から、判別式 D≧0 を利用して, のとる値の範囲を考える. なお、式を整理した後(i) = 0.) k0 で場合分けをする。 解答 x-1 =k とおく x2+3 (整理した式は2次方程式とは限らない) まずは,「=」と < +30より両辺に+3 を掛けて, x-1=k(x2+3) kx2-x+3k+1=0 ...... ① (i) k=0 のとき 今の 2次方程 とは限らない . x+1=0 より x=1 (i) = 0 のとき xは実数より 2次方程式 ① は実数解をもつ. よって、 2次方程式①の判別式をDとすると, D≧0 D=(-1)2-4k(3k+1) 86=-12k²-4k+1 したがって, -12k2-4k+1≧0 D≧0 となり, ①が 実数解をもつんの値 の範囲を求める。 12k²+4k-1≦0 (2k+1)(6k-1)≦0 k=1/2のときより、x= =3 2k 1 2k よって, 最大値1/(x=3のとき) *0.-≤k≤ (k=0) したがって、(i), (i)より、12ks/ k=-1/2 のとき,①より、x= -=-1 kの値の範囲より、 最大値,最小値を求 める. k=- 1のとき. 2'6 D=0 より ①は重 解をもつ. 最小値 12 (x=-1 のとき) ax+bx+c=0(aq=0) b 重解はx=- 20 (与えられた式) xが実数であることから, とおき, 判別式 D≧0 を利用する 練習 2(x-1) 49 **** -2x+2 の最大値、最小値と,そのときのxの値を求めよ.

英語が得意な方、この答えを全て教えてください。よろしくお願いします。

2 Word Definitions Match the words with the definitions. 1. favorite ( a C d a stage in the history of a family to say that you will not accept an offer what is left after everything else has gone to have something in your hands or arms liked more than others of the same kind 2. hold ( ) b 3. generation ( ) 4. refuse ( ) 5. rest ( ) e 3 Complete the Sentences Fill in the blanks using the words shown above. color. 1. Orange is my 2. Peter ate the of the pizza. 3. Could you this puppy for me? 4. People of my grandfather's hardworking. are 4 Words in Context Circle the appropriate answer. 1. Bill was named after his father. His father is (also not) called Bill. 2. These pillows were very soft, so I ( had / didn't have) a good sleep. 3. My sister and I hug each other every day. We are (not / very) close. 4. David was popular at school. Everyone (liked / hated) him. 7

24の問題の④って、問題文の最後の1文と一致すると考えたのですが、何が違うのでしょうか？

iny, is one of the most ock may not look like A A A oronation Cerenfonies mes from around 500 d while sitting on the py weighs about 152 Is name from Scone mnd, where the stone ere actually crowned ed to castles such as biggest controversy e in 1296 AD, the London with him. A Edward did this to m then on English Eh Scotland would tinued until 1603, united under one med on this throne. 996, when it was eve that the stone wspaper in 1819 King Macbeth's covered with an 起営 engraving that suggests this could be the actual Stone of Destiny. This story has been dismissed by experts, and the stone that was kept in Westminster for 700 爆発 years is considered the true stone In 1914, suffragettes campaigning for women to have the vote detonated b bomb in Westminster Abbey and the stone broke in half. Later, to save it from further bombs during the Second World War, it was hidden, with the location 047 only known to a few people. In 1950, on Christmas Day, four Scottish students retrieved the stone from Westminster Abbey and took it back to Scotland A huge police search was undertaken, but it was only when the stone was left at Arbroath Abbey four months later that it was recovered. It was thought that the students had broken the stone, but we now know that it was the suffragette's bomb that caused the damage. 23we know the names of the four students, they were never arrested or prosecuted. The leader of the group. Ian Hamilton, remained proud of his nctions until his death in 2022. Today a replica of the stone sits on the original site of Scone Abbey, which tourists can visit and even sit on. The original is in Edinburgh Castle and can also be seen by visitors. It briefly returned to London in 2023 for the coronation of Charles III 文中の空欄 21~23に入れるのに最も適切なものを、 ①~④の中からそれ ぞれ一つ選べ。 21 During 2 Since (3) From 4 Until A Som Somo The Be (2024AA-B-11) (2024AA-B-12) -12- 26 According to the passage, what was the Stone of Scone used for? building thrones 2 fighting wars 18 (25) 3 crowning kings and queens making engravings 27 According to the passage, which of the following is true? Ian Hamilton and his friends were arrested for stealing the stone. The stone in Scone Abbey today is not the real stone. The stone was hidden during the First World War. らそれぞれ一 4 Charles III was crowned in Edinburgh Castle in 2023. 28 According to the passage, which of the following is not true about the stone? It was stolen by students and hidden in Scotland. It was stolen by Edward I and taken to London. 3 It was broken in half by the suffragettes. 4 It was broken in half by four Scottish students. 29 What is the main idea of the fourth paragraph in the passage? (1) The stone stolen by Macbeth was a replica. The Morning Chronicle newspaper found the Stone of Destiny. 3 In 1819 the stone left Scotland. report on n の 4 A stone was found under King Macbeth's castle. tract with com main prop ingr can and lea fre to

過去問です この紫のマーカーを弾いているところはどこと「the practice」を結んでいるんですか？ またその一文の訳を教えて欲しいです！

7 (1) Tea despite legends of its ancient history) is, (in the long view of things, just a recent introduction to China. The Chinese probably (a) S learned tea from natives of northern India or from peoples living in ffrom Southeast Asia) Some Chinese histories (do report that tea was brought (b) S from India to China. Westerners believer coffee also came from China According to another account natives of Southeast Asia boiled the green (d) leaves: (③wild tea trees) (in pots over campfires and the practice was later transferred to China. Nevertheless, it is clear (②st Westerners strong of S. associate tea with Ching, the way that we associate coffee with Arabia, although each was regarded as an exotic drink when introduced. Unfortunately the details (① tea's pre-Chinese history (ike the details of coffee's pre-Arabian Instory) are lost. V

1番下の式に重力を斜面方向に分解した分力の仕事が書かれないのは何故ですか？ 運動中は働かないということですか？

チェック問題 3 滑車と放物運動 図のように, 上端に滑車のつい 傾角30°の粗い斜面がある。質量 mの台車Aの上に質量mの球Bを 乗せ、軽い糸で滑車を通して質量 4mのおもりCにつなげ, 全体を静 かに平板上に置いた。 台車は, 動 摩擦係数 3 やや 15分 B m A 4m 130° の斜面上Lだけ登り, 滑車に衝突すると, 球はその 3 ときの初速度で空中に飛び出していって最高点に達した。 (1) 球が飛び出す速さ はいくらか。 (2)球が飛び出した位置からはかった, 最高点の高さんはい くらか。 ただし, 最高点での球の速さは √3 -v となる。 2 解説 (1) 速さを問うので,エネルギーで解 こう。 まずは,動摩擦力から出してみよう。 図a で, 台車と球の斜面と垂直方向の力のつ り合いの式により 垂直抗力Nは, N N F N = 2mg cos30°=√3mg -30° 2mg よって、動摩擦力の大きさ Fは, 図 a F=3NV3 x √3mgmg... ① 3 3 ここで, 台車と球に注目して 《仕事とエネル ギーの関係》を立てると、 「3要素」は(ばねナシ), L T 1-1+ 前 (速さ0) (高さ0とする) 前 30° 後 (速さ), (高さはLsin30°= 前 2 高さ 0 とする 図 b 0+(-FXL)+(張力T)×L=122mu2+2mg × 12L となるね。 未知 この式からは求まるかい? 2

20番の問題で僕は3番のmay had goneを選んだのですが答えは2番のmay have goneでした。これは過去完了の推測だったって認識で合ってますか？詳しく教えて頂けるとありがたいです

eat e d re those days and, towards this end, (17) Columbus went on a great slave raid in the Americas in 1495. It is believed that Columbus took up to fifteen hundred native American people to become slaves. Men, women, and children were gathered up and sent to cages where Columbus picked five hundred of the healthiest ones to send back to Spain. During the trip back to Spain, two hundred of the captives died en route*. The ones who made it to Spain were sold into slavery by the church. (18) So, now we know that Christopher Columbus was not a brave pioneer who went to a new world () discovery and fame, but a person who was looking to make himself rich. He ( ) to the Americas looking for gold. [(19)[] (20 but he found a people who he sold into slavery for his own profit. Not quite the hero the history books made him out to be, wouldn't you say? (注)en route 途中で 下線部(1)"all across” の意味に最も近いものは次のどれか。 解答番号は

写真の答えが書いてあるところはあっているかと書いてないところの答えを教えてください🥲🙏🏻

1 : had +£/££?£: had been V-ing 過去のある時点を基準に、それよりさらに過去の出来事について述べるために使われる 「(その時) すでに~していた」 「(その時まで) ずっと~していた」) さらなる過去 過去のある時点 現在 1 This village had lasted for 1,000 years before it disappeared. (p.62) 2 Yamaoka Nobutaka had spent five years visiting 100 Jomon sites before filming a movie. (p.66) 3 When my first flight arrived in Jakarta, my next flight had already left. 4 Before that, they had been moving from one place to another. (p.62) 5 We had been talking for an hour when my mother came in. Exercises 1 Complete the sentences using the words in parentheses. e.g. I went to Sam's house, but he wasn't at home. (he, go, out) He had gone out before I arrived. 1. A woman talked to me on the street. I knew her face. (I, meet, her) I thought I had meet her somewhere before. 2. It was really nice to see him again. (I, not, see, him) 実際の In fact, I had ところは、 not seen him for three years. 3. Katy was so happy with the Japanese doll you gave her yesterday. (look for) She had been looking for it for many years. 2 With your partner, make up conversations with your own ideas. "B" uses "had done" or "had been doing," and "A" responds with comments or questions. 1. A: Did you enjoy the movie with your sister? B: Not really. Before we arrived at the theater, A: 2. A: Hey, you looked very tired when we met last Friday. What was wrong? B: I was so busy last week. I A:

合ってるかみてほしいです💦

1. I lost my umbrella, so I have to go to a store to buy a new ( ).(京都医療科学大) ①any → the other ②it 3 one 2. I bought a book on the history of England a month ago, but I haven't read ( ) yet. ①one 2 the one ③ it (大阪経済法科大) ④them 3. The white curtains are more suitable for this room than the blue ( Ⓐone ②those ③ones □ 4. 彼女のコンサートには約100,000人が来ると見込まれています。 ). ④ some (名古屋学芸大) ( ) is anticipated that about 100,000 people will come to her concert. (成城大) ⑪It ②There ③That ⑨What □ 5. ナオミはその出来事にとても多くの人が動揺していることが驚きだと思った。 語順整序 (近畿大) Naomi found (surprising / it / so many people / upset / that were) by the incident. it were surprising so many people that upset

この文章を35~40単語でわかりやすく要約して欲しいです

The Story of Holly Butcher 目標時間2分11秒 act Part 1 haky A 本文をスラッシュ(/)の区切りに注意して読んでみよう。また、必要な書き込みをしよう A Note Before I Die ●込もう。 abioW weИ [1] I've had a lot of time / to think about life / these past few months, and I want to share/ some of my thoughts. It's a strange thing / to realize and accept / that you're mortal/ at the age けて単! 2b10W w9M of 26. But the clock keeps ticking / and I know / death is fast approaching. I always imagined myself growing old / with wrinkled skin and grey hair / after raising a beautiful and loving family. Even now / I still want that so bad / that it hurts. [2] Life is fragile, precious, and unpredictable, and each day is a gift, / not a given right. I'm 27 years old now. I love my life and I am happy. I don't want to leave the world, / but that decision is out of my hands. [3] I'm not writing “A Note Before I Die" / so that people will fear death. In fact, it's good/ that we are not constantly thinking / about its inevitability. For the most part, / death is often considered a "taboo" topic, / especially among young people. I want people to remember/ that we all suffer the same fate / in the end. So, stop worrying / about the little issues/ that cause meaningless stress / in everyday life. Whenever you start complaining / about unimportant things,/think about those people / who are actually facing serious problems / and be grateful/ that your problems are minor ones. Take a deep breath of the fresh air, / and be thankful/that you are able to breathe it in. 1. H OP 訳 2. 22 訳 3. 33 activity B 各段落のトピック

赤線の部分なんですが質問です ①なぜAt the end...から始まるのか？普通はIやWe から始まるのでは？！ ②なぜ私達という訳がないのにweが入っているのか このふたつが分かりません💦 誰かお願いします🙇‍♀️

5 公園花火見物 例 apark/ 川魚つり 水泳 ① a river / fishing the sea / swimming ③ th seeing fireworks ca Story 自目 メグは、翌日の英語の授業で昨日のことについてスピーチをしてい メグはシドニーでは何月に夏祭りに行きましたか。 1 イエスタデイ 2 ウェント Yesterday, I went to the summer festival with Asami, Josh, and Kaito. We enjoyed dancing there. 3 エイト 4 5 I ate a big candy apple. キャンディ ・アクセント どのまつりか決まっているから It was delicious. エンド At the end of the festival, ソーッツ we saw lots of wonderful fireworks. 6 ハド Key We had a great time. Sentence すご havea great time 思い出 24 I went to the summer festival yesterday. 話すと 小学校の単語 firework (s) big small => was fun delicious river fishing wonderful year mountain(s) ca