2,3枚目が答えです。 模範解答は a = ー1 b = 3 c = 5 になります。 自分の答えは、 a = ー1 b = 5 c = 3 になってしまいます。 どこで間違えてるのか教えてください🙇‍♀️

a+b+c=7 の HINT 4a-26+c=-5の まず, cを消去して a, bの連立方程式 を導く。 9a+36+c=5 9a+36-C=5 O+の 4a+b=-/ 2a-6=-4 2-5 フa+ b+C=ク 8a+2b 全部 2をする 4atb =-1-0 $a -1 a R=1を③にイta 1-6:-4 2 - ① 4a-26+C=-5 2atb+C=7 3a 36 :-る 全部や多をする a-b:-4- -b:-5 65 a=-1,b=5をOctl ー1+5+C-7 C=3 よっ?、aこ-libe5,c=3 a=-1,b=5,c23 認 問題 (1

ものすごく至急です💦今日授業で当てられそうなのですか答えが確実じゃなくて焦っています 答えだけでいいのでほんとうによろしくお願いします 根拠の場所あれば教えて欲しいです

次の英文を読み,下の問いに答えなさい。 We all know the saying “To err is human." And this is true enough. When somethine 80es wrong, the cause is overwhelmingly attributed to human error: airplane crashes (70 percent), car wrecks (90 percent), workplace accidents (also 90 percent), You name it, and humans are usually to blame, And once a human is blamed, the inquiry usually stops ans ISL stu an 止 there. But it shouldn'tー atleast not if we want to eliminate the error. S In many cases, our mistakes are not our fault, at least not entirely. For we all have certain biases" in the way we see, remember, and perceive the world around us, and these biases make us commit certain kinds of errors, Right-handed people, for instance, tend to turn right when entering a building, even though that may not afford the best route to take. And most of us, whether left- or right-handed, show a preference for the number 7 and the color blue. We are also so persuaded by our first impressions of things that we are reluctant to change our first answer on a test; yet many studies have shown we would be better off if we did exactly this. Qur expectations can shape the way we see the world and often the way we act in itas well, In one case, people encountered an unknown man and were later told his occupation. When they were told that the man was a truck driver, they said he weighed more%; when they were told he was a dancer, they said he weighed less. In another case, half the people in a restaurant were told their free glass of wine that night came from France; the other half were told their wine came from somewhere else. Not only did the second group eat less of their meals, but they headed for the doors more quickly. Farmers too show the same tendency. Farmers who believe in global warming, for instance, have been shown to remember temperatures as being warmer than those recorded in statistical tables, And what about farmers who do not believe in global warming? They remembered temperatures that were colder than those in the record books. What's important about these examples is not that we think a truck driver is fatter than a dancer or that temperatures are warmer than they used to be. What'simportant is that these effects occur largely outside of our consciousness; we're biased ー we just don't know we' re biased. Some of these tendencies are so strone that eyen_when_we do know

有機化学 構造決定 (４)から解き方がわかりません。教えて下さい。 宜しくお願いします。

3、 HO- NO2 (HON Ho-C)-NH2 ro-) CaHaND。 2+2-111. ら 6 -cMs 1 マレ2 炭素, 水素, 酸素からなる化合物 A~D は同じ分子式を有し, ベンゼン環を1つもつエステルである。 1 以下の文章(1)~5)を読んで間1~7に答えよ。 必要があれば次の原子量を用いよ。 H=1, C=12, 0=16 (1) のエステルAを2.05mgとり,酸素気流中で完全燃焼させたところ, 二酸化炭素5.50mgと水1.35mg が得られた。 (2) エステル Aに希塩酸を加えて加熱し, 加水分解を行った。反応液が冷えてから, エーテルで数回抽出 した。エーテル層を合わせ, 穏やかに加熱してエーテルを注意深く蒸発させると,1価のカルボン酸EE 天文ノールが得られた。 @純粋なEを816mgとり,水に溶解した後に0.10mol/L の水酸化ナトリウム水 溶液で適定すると,中和するまでに60mL を必要とした。 Eを過マンガン酸カリウムで酸化すると化合物 Fが得られ, Fを加熱すると分子内で脱水反応が起こり, 化合物Gが得られた。 (3) エステルBに水酸化ナトリウム水溶液を加えて加熱し,加水分解を行った。反応液を冷やし, エーテ ルで抽出すると, エーテル層から不斉炭素原子をもつ化合物Hが得られた。OHに濃硫酸を加えて加熱す ると脱水反応が進行して炭素-炭素二重結合が生成し, 3種類の異性体が得られた。 (4) エステルCに過剰の水酸化ナトリウム水溶液を加えて加熱した後,反応液を冷やし, エーテルで抽出 を試みたが,エーテル層からは何も得られなかった。そこで, 水層に二酸化炭素を十分に通じた後にエー テルで抽出すると, エーテル層から化合物Iが得られた。@Iに塩化鉄(Ⅲ)水溶液を加えると紫色に呈色 した。Iに臭素を反応させたところ, 反応の初期段階で生成する,ベンゼン環に直接結合した水素原子が 1つだけ臭素原子に置き換わった化合物は1種類のみであり, 異性体は存在しなかった。さらに反応を読 けると, Iのベンゼン環の水素原子はすべて臭素原子に置き換わり,同じ置換基が隣り合わない構造を有 する6置換ベンゼンJが得られた。一方, ©水層に塩酸を加えて弱酸性にし,その一部を取ってアンモニ ア性硝酸銀水溶液を加えると銀が析出した。 -CHO (5) エステルDに希塩酸を加えて加熱し, 加水分解を行った後, 反応液を冷やしてからエーテルで抽出す ると,エーテル層から不斉炭素原子をもつカルボン酸Kが得られた。 問1 下線部のの結果から, Aの組成式を求めよ。計算過程も示せ。 問2 下線部のの結果から, Eの分子量を求めよ。計算過程も示せ。 問3 (1)および(2)の結果から, Aの分子式を求めよ。 考え方も示せ。 問4 下線部ので得られた異性体の構造式をすべて示せ。 問5 下線部のの結果から, Iが有する構造上の特徴を簡潔に説明せよ。 E (>F 市> G -し世 -DH 下線部ので,弱酸性にした水層に含まれる有機化合物の名称を答えよ。 問7 エステル A~D の構造式を示せ。 また, 不斉炭素原子の右上に*印をつけよ。 問6 奈良女子大学

8番の答えがfor になる理由教えてください

C considerably D exactly 8. Karen has been working for this company the last twenty years. A) since B from C for D while 9. We decided to play tennis t was raining outside. A) in spite of

写真の文を訳したのですが,if~~,のところをどこで訳せば良いかわからないです。 この場合最初に訳した方がいいのでしょうか？ よろしくお願いします

the latter kind is raré áhd Supporters of active euthanasia believe doctors should directly help patients with incurable diseases to die, if that is their wish, in order to stop their suffering. On the other cis that doctors mniaht be wrong

【至急】間違っているところを丸をつけて直す課題です。 括弧内は間違っている単語数だそうです。 お願いします。

ACTIVITY 13 || Finding and correcting mistakes Circle the mistake(s) in each sentence. The number in parentheses ( ) is the number of mistakes in that sentence. Then write the sentences correctly. 1. MDfavorite food salad. (2) My favorite foodis salad. 2. I lik salad with tomatoes (2) 3.jalso like tuna salad (2) 4. una salad is very good. (1) 5. funa salad with Apples is good. (2) 6. I like salad a lot (1)

【至急】間違っているところを丸をつけて直す課題です。 括弧内は間違っている単語数だそうです。 お願いします。 途中までやってみましたがわかりません。

ACTIVITY 13 || Finding and correcting mistakes Circle the mistake(s) in each sentence. The number in parentheses ( ) is the number of mistakes in that sentence. Then write the sentences correctly. 1. MDfavorite food salad. (2) My favorite foodis salad. 2. I lik salad with tomatoes (2) 3.jalso like tuna salad (2) 4. una salad is very good. (1) 5. funa salad with Apples is good. (2) 6. I like salad a lot (1)

訳がわからないです

UNIT 10 UNIT 11 UNIT 12 UNIT 13 UNIT 14 COMPREHENSION QUESTIONS Decide if each statement is true [T] or false [F]. If it is false, write the sentence correctly. 1. [T It was once believed that mercury could change any metal into liquid. 2「1 The human activity of generating electricity creates mercury air pollution. 3.「 1Once taken into the human body, mercury is difficult to remove even by medical treatment. 4. [ ] Mercury is not found in tooth fillings because of its risk of intimate contact with the human body. 5.[] The use of mercuryin thermometers has been encouraged after its poisonous nature was eliminated. 19

2行目のcan beの意味はなんですか？ また、3行目最後の「in」はなぜ、「on」では無いのでしょうか？

David Greybeard first showed me lhow ( 1) the distinction between animals and humans can be.」 Forty years ago I befriended David, a chimpanzee, during my first field trip to Gombe in Tanzania. One day I offered/ him/a (nut in my open palm. He looked directly into my eyes, took the nut out of my hand and 5 dropped it. At the same moment he gently squeezed my hand as if to say, I + 1 TTO11

一枚目の写真の回答がわからないです全て 教えてください

bkao bib yotth 日 A Reading for main ideas: Choose the best answer. 1. What is the main idea of the passage? The development of the role of caddies. ⑤ The fighting spirit necessary for athletes. © The friendship between a golfer and a caddy. Yabluos od b tol i 6haahgot 2. Bruce Edwards changed cxthetoag the way people saw caddies b his career from a golfer to a caddy greoya0 Sregnig © golf courses so that golfers could play safely B Reading for details : Fill in the blanks with the words in the box below. There are som unnecessary words. Then divide the paragraphs into the following sections. There was a very (1. ) caddy called Bruce Edwards. 1 After Bruce (2. ) from high school, he started to work for Tom Watson as a caddy. 2 Caddies used to just carry the golf bag for golfers, but Bruce always (3. 3 condition of the course. ) the Bruce was also not afraid to (4. )with the golfer. 4 After many (b. ), Watson wanted to play less, so Bruce decided to work for Greg Norman. 5 6 Bruce missed Watson, and he decided to return to Watson after three years、 (6. 7 After they started to play together again, Bruce began to have some (7. ) problems. 8 Bruce was (8. ) with ALS, but he continued to caddy for Watson. Both Watson and Bruce (9. ) at the US Open. 9 10 Watson and Bruce knew this could be their last time together in the (10. Watson asked for (11. 11 (12. ) to do more research on ALS, and Bruce was very ) for having someone like Watson with him. Paragraph Organization Introduction Words en aih g) Becoming Watson's caddy ( Separation and reunion Deadly diagnosis The last chance together in the spotlight ( diagnosed / disagree / examined funding / special/ sorrow separation / health / spotlight thankful / graduated victories / weaker / appeared へ へ Epilogue へ