2枚目の付箋を貼った行がわかりません

次関数 (1)の解 S+AS+ 7 曲線 y=x2 (-2≦x≦1) 上の相異なる3点をA(a, a²), B (6,62), C(c, c2) とする。このとき, 次の問いに答えよ.ただし,<bc であるものとする. (1) △ABCの面積Sをa,b,c を用いて表せ. (東北大) (2)a,b,c を上述した条件の下で動かすとき, Sの最大値を求めよ. CARA <(1) の考え方> 点Bを通りy軸に平行な直線と直線ACとの交点をDとし, △ABC を △ABD と ABCD に分割して考える. 3点A, B, C は相異なる点で, その左右の位置関係も判 明している. 直線 AC の方程式は, y=(c+a)x-ac .....1 ここで,点Bを通りy軸に平行な直線と直線AC との 交点をDとすると, Dのx座標は6となる. また, ① に x=6 を代入すると, y=(c+a)b-ac =ab+bc-ac より, D のy座標は ab+bc-ac である. したがって線分BD の長さは、 BD=(ab+bc-ac) =(b-c)a-(b-c)b -2 (70365 =(a−b)(b-c) ◎おうとなる。 よって, △ABCの面積Sは, S=△ABD+△BCD BD B LD -)-(1+08) I-0- SA 4X4 YA =1/12(a-b)(b-c){(b-a)+(c-b)} =1/12(a-b)(b-c)(c-a) 0 1 6x=b² <=@ BD ADAN (Bのx座標 =/(a−b)(b-c)(b-a)+(a−b)(b-c)(c-b x 2点A(a, a2), C(c, c2) を通る直線 _c²-a²ª_(x−-a)+d² y= Ac y=(c + a)x-ac c-a _(c+a)(c/a) c-a (x-a)+ a² =(c+a)(x-a)+a² =(c+a)x-ac =(c+a)x-ac (Cのx座標)一 (c+a) (-a) žá²+² (Bの座標 必ず面積分割すること (②2)の <--2 関係 (2)の解 a. (i (ii であ a= NAJC よ + One (1)のよ 学ぶべ AB= すこS -2≤

be standard exercise Lesson7〜9まで、回答を教えて頂きたいです 7.8は私が書き込んでしまっています、すみません

S J そうに違いない そのはずだ Allow:ybnA Should と同じ意味] そういうこともある そうかもしれない ation. んそうだろう かもしれない に違いない ―のはず Exercises (1) 日本語の意味に合うように、( )に適語を入れなさい。 1. 私は夢を見ているに違いない! 1 (mast) be dreaming! 2.テストは3時には終わるはずだ。 The test (should) be over at three o'clock. 3. 彼らは図書館にはいないはずだ。 They (should be in the library. (2) ( )に入れるのに適切なものを, [ ]内から選びなさい。 1. It's cloudy. It (may) rain in the afternoon. 2.It (can) be cold here even in summer. 3. He (can't) be at school now. It's ten p.m. He must be at home. [can/ can't / may] (3) 日本語の意味に合うように( )に適語を入れなさい。 1. 彼は今, 20代の半ばでしょう。 He (would) be in his mid-twenties now. 2. 彼に聞いてごらん。彼はきっと真実を知っているよ。 Ask him. He (will) know the truth. (4)[ ]に示した意味に合うように, 下線部を埋めて英文を完成させなさい。 1. I may have leff my umbrella on the train. [置き忘れたかもしれない] My sister should have won the game. [勝ったはずだ] 3. Something bad musthave to him. [起こったに違いない] 4. She can't have my birthday. [忘れたはずがない] (5)内の語句を使って、 日本語の意味に合う英文をつくりなさい。 お父さんは僕のことを怒っているに違いない。 [ be angry with ] My father must be angry with me. 2. 彼女は私の話を信じていないかもしれない。 [believe my story ] She may not be beliere my story. 3. それがおそらく最もよい解決策でしょう。 [would / the best solution ] Thas would bethe best solution. 4. だれかが警察に電話をしたはずだ。 [ someone / the police] Some one shold have called the police. A Conversation A: It's strange. (2) should be here now. B: Hmm. He [She] may have gone to the wrong place. B Lesson 7 空所に友人の名前を入れ, 下線部をその人のことに言い換えて、会話しましょう。

英検の準1級の英作文の添削をお願いします。 字数数えるために段落は作っていないので、／を入れておきました。 準一級の英作文初めてなので本当に拙い文章ですが、それでも採点してくださる方がいたらお願いします😵‍💫🌀´-

In my opinion, people should not trist information on the Internet. I have two reasons to support this based on news and socil media, In the first place, Internet news may contain fake news. I don't know whether information is true because it don't have evidence. However, many people don't know it and believe it. It is very dangerous In the second place, many people post take information on social media, and people who belive it twe pout it, too. It's bad a cycle / Therefore, I think people should be careful about I Internet Intamation.

この問題を詳しく教えて欲しいです🙇‍♀️

Section 073 244 SOUR RAJES Jariw STO noit ) I thought was sure to There was no objection from the man ( Lintner dananes protest. 1 who 3 of whom) Cei trert 13w12 01 al 2 fortw (2) whom Xby whom Louibus sonst -i Jedw <桜美林大)

この問題を解いていただけませんか？？

2( ()内の語句を並べ替えてセンテンスを完成させなさい。 そして完成したセンテン スを下線上に書きなさい。 1. 私のロンドンへの出張の計画表は、かなりのタイトスケジュールに見える。 My itinerary for my business trip (to looks very London tight). 2. 急いでいたので受付の人にタクシーを呼んでもらうように頼んだ。 We were in a hurry, so I asked the receptionist (us to taxi calla). 3.ニューヨーク行きの便でのひんぱんな (飛行機の揺れが私の具合を悪くさせた。 Frequent turbulence (sick me made during feel) my flight to New York. 4. かなり寒かったので客室乗務員が私にもう一枚、 毛布を持って来た。 The (me flight another brought attendant) blanket because I was very cold. 5. 気圧が高いので私の耳が痛む。 The air pressure is (high my hurt ears so).

この問題教えてください🙏何故そうなるのかも教えてくださると助かります！！

The area known as the Outer Banks has a distinctive line of lighthouses ( coastline. 2 to illuminate illuminates (3) illuminated sou pluco in hirta edT ) its dangerous 4 having illuminated [ 4 ] ( ) the rainforests of West and Central Africa, the African golden cat is threatened by deforestation and hunters. Inhabit 2 Inhabited 3 Inhabiting 4 To inhabit [ 5 ] Deserts, ( ) already occupy approximately a fourth of the Earth's land surface, have been increasing at an alarming pace in recent decades. DessalT 1 which 2 what where 4 that [6] The growing concerns over global warming along with depleting oil and gas reserves have made ( ) necessary to seek energy from renewable resources. it Datashua 2 that them 4 those (

文法が分からないので、解説も含めて解答を教えてください！

The area known as the Outer Banks has a distinctive line of lighthouses ( coastline. 2 to illuminate illuminates (3) illuminated sou pluco in hirta edT ) its dangerous 4 having illuminated [ 4 ] ( ) the rainforests of West and Central Africa, the African golden cat is threatened by deforestation and hunters. Inhabit 2 Inhabited 3 Inhabiting 4 To inhabit [ 5 ] Deserts, ( ) already occupy approximately a fourth of the Earth's land surface, have been increasing at an alarming pace in recent decades. DessalT 1 which 2 what where 4 that [6] The growing concerns over global warming along with depleting oil and gas reserves have made ( ) necessary to seek energy from renewable resources. it Datashua 2 that them 4 those (

至急‼️ (3)のこの溶液をもちいて、5%の食塩水を作るにはどのようにすればいいか。の求め方がわかりません。 また、答えや解説がないため、答えと一緒に解説もお願いしたいです。よろしくお願いします(>_<)

6. 次の間に答えよ。 なお、 途中計算式なども必ず書くこと。 なお、 原子量は、 H=1.0、C=12、 N=14、 0=16、 Na=23 C1=35.5 を利用せよ。 (1) メタンとエタンが1mol燃焼するときの反応熱 (発熱) は、 それぞれ 890 kJ1560 kJである。 これらの気体がそれぞれ1g燃焼するとき、 発熱量はどちらがどれだけ大きいか。 (2) グルコース (C6H1206) 18gを水に溶かして500ml とした。 このときのモル濃度 (mol/L) はい E) DANS くらか｡ (3) 食塩50gを水200g に溶かした。 このときの重量パーセント (%) はいくらか。 また、この溶 液をもちいて、 5%の食塩水を100g作るにはどのようにすればよいか。 STE

至急❗️大門1がわからないので、教えて下さい。よろしくお願いします。

1 次の英文を日本語に直しなさい. □(1) Look at those students who are playing baseball in the schoolyard. (2) Yesterday I went fishing with a friend of mine who lives near our school. (3) We enjoyed ourselves in the museum which was built in Kyoto last year. (4) The teacher who has just married is Mr. Mori. (5) I have some friends whose mothers or fathers are teachers. (6) The policeman saved a boy and his dog that were lost in the dangerous area. (7) My aunt bought several pictures that were painted by the famous artist. (8) We are going to eat at the restaurant whose owner is a very nice person. (9) The building whose roof was damaged by the typhoon is the bank.

(6)でなぜ完了不定詞になるのか教えて頂きたいです。 問題文の方で、校長先生だと言われていた時と校長先生だった時は、同じ時制ではないのですか？

EXERCISES 1 次の各文を、 それぞれ [ ]内の語で始まる文に書きかえなさい。 1) For children to swim in this river is dangerous." [It] 2) This town is pleasant to live in. [It] 3) You're nice to remember my birthday. [It] 4) The teacher advised Yumi not to waste her time." [Yumi] 5) We saw Mike get on the train at Kyoto Station." [Mike] 6) It is said that Ms. Suzuki was principal* of this school. [Ms. Suzuki] 7) It appeared that the boy had forgotten my name. [The boy] 8) It seems that there is little hope of her success. [There] 次の各文の誤りを正しなさい. 1) Please be careful to not touch the walls. 2) Lisa came all the way, only find Mike was out. 3) It was careless for her to make such a mistake.* 4) We listened Takeshi to play the piano.* 5) The professor made her student waits in the hall.* 5) The meeting is to hold in London next month. 7) I was enough lucky to find a nice apartment. LALALAL 次の各組の文がほぼ同じ意味を表すように, 第2文を完成させなさい. Would you tell me the way to City Hall? ) Would you tell me ( ) ( ) ( ) to City Hall? Ann wondered whether she should see him or phone. Ann wondered whether ( ) ( ) him or phone. have some books that you should read. I have some books ( ) ( ) ( ) ( ). I'm free this afternoon. I have () ( ) do this afternoon. told her that she should be more independent.* told ( ) ( ) ( ) more independent. It happened that I met Koji at the cafeteria. I ( ) ( ) ( ) Koji at the cafeteria. 1) For children はどんな働きをしている 6) principal 4), 5) 受動態にする