化学反応式の係数の付け方についてです。 これらの問題ですばやく解くにはどのようなコツがありますか？ それとも無機で出てくるようなものは係数を暗記した方がいいですか？

3601SETA 00.3A (S (3)次の化学反応式の係数ai を例にならい求めよ。の方が激しく反応するが、これ 151]) 3 NO2 + 1 H2O 2 HNO3 + 1 NO C CO2+d H2O け a C6H12O6 + b02 e Cu + f HNO3 → g Cu(NO3)2 + h INO + i H2O

文法問題です。答えがないので合っているかどうか教えてほしいです

Choose the best answer to fill in each blank. (1) I like that white bicycle of 1 she 2 her 4 herself Fil 1 【神戸学院大 】 sa (1) p.495 (1) I f 3 hers many people in the I v (2) p.153 (2) H (2) The photographer is well known United States. Let's go and see her photo exhibition. with H as (3) Stop talking. 2 for Didn't you hear the bell ( 3 to )? 【 関東学院大】 (3)参 p.178 1 rang 2 rings 3 ring 4 ringed (3) D (4) The book is ( ) a guide to Africa as a story set in the (4) .265 【日本女子大 】 area. 1 no less than (4) 2 none the better for 3 not so much 4 not the same (5) (5) We requested that the meeting ( ) put off. finished our preparation. We hadn't (5) p.327 1 be (6) Please help yourself ( 2 should 3 is 4 would be (6 ) whatever you like. 【桜美林大 】 (6) p.498 1 by (7) Do you know that young lady ( 2 in 3 for 4 to 1 talk 2 talking ) with our boss? 【日本歯科大】 3 to talk 4 talked (8) I brought my friend to the cafeteria to eat lunch. After eating (7) 参 p.224 (8) 参 p.340 lunch, he asked me ( ) smoke there. 【名古屋工業大 】 ① that he can 2 where could he 3 whether or not 4 if he could (9) "I think Matt is a hard worker." "You ( ) be joking. He's rather lazy." A (9) p.117 ①had better ③ have 2 must would rather (10) We should decide when to start the new project ( discussed the other day. 1 which 3 with which (11) I sent Jane two letters, ( ①neither of which 3 of neither which for which 4 in which ) she has received. 2 neither which which of neither AJEA ) we (10) pp.58, 285 【創価大】 (11) 参 .306

答えが③になります。 ①のwhyではないのですか？？？ 教えてください🙇‍♀️🙏

□ 君はどうしてそんなに笑うのですか? ( ) makes you laugh so ? 1 Why 2 How 3 What 4 Who

数Ⅲ定積分の問題です。 積分の計算自体は分かりますがいまいち解答の流れが理解できません。xの2乗とeのt乗の大小関係を調べているという解釈であっていますか？ また、1<x≦eのとき積分区間を絶対値の中身が正or負でわけていますが、2logxで変える理由がなんとなくでしか理解... 続きを読む

Example 24 ***** sxse とする。 関数 f(x) = flexdtについて,次の問いに答えよ (1)定積分を計算し, f(x) を x を用いて表せ。 (2) f(x) の最大値と最小値を求めよ。 12 解答(1)≦t≦2 において 1setse x21 すなわち 0≦x≦1のとき f(x)=(e'-x)dt=[e'-x²]= 1 <x≦e すなわち 1 <x≦e のとき et-x2=0 とすると t=210gx よって AA -x2t=-2x2+e2-1 0 ƒ(x)=S21°** (− e²+x²) dt +Slox (e²x²) dt 1210gx 0210gx x2t 72 = [— e² + x²+] ** + [e' — x²+] 10xx 1210gx [15 静岡大 ] Key ef-x2の符号が 入れ替わるようなxが、 積分区間0≦t≦2 に存 在するかどうかで場合 kaiay+分けする。 0≦x≦1の =(-x2+2x2logx+1)+(e2-3x2+2x210gx) =4x210gx-4x2+e2+1 2x2+e2-1 (0≤x≤1) 4x210gx-4x2+e'+1 (1<x≦e) ゆえに f(x)= 0<x<1のとき f1(x)=-4r とき存在せず, 1 <x≦e のとき存在する。 Support 1<x≦eの ときは,el-x2の符号 に注意して,積分区間 [02] を分け, 絶対値 をはずす。 (6) Key 区間にハー

fについてです 解説が載っていなかったため質問しています、。 なぜ、③を選ぶことができるのでしょうか？

Long-s doctrin holds that we are protected from fungi not just by layered immune defenses but ( e ) we are mammals*, with core temperatures higher than fungi prefer. The cooler outer surfaces of our bodies are at risk of minor assaults-think of athlete's foot*, yeast infections, ringworm*-but in people with healthy immune systems, invasive* infections have been ( f ). That may have left us overconfident. "We have an enormous (g) spot," says Arturo Casadevall, a physician and molecular microbiologist at the Johns Hopkins Bloomberg School of Public Health. "Walk into the street and ask people what are they afraid of, and they'll tell you they're afraid of bacteria, they're afraid of viruses, but they don't fear dying of fungi." Ironically, it is our successes that made us vulnerable*. Fungi exploit damaged immune systems, but before the mid-20th century people with impaired immunity didn't live very long. Since then, medicine has gotten very good at keeping such people (h), even though their immune systems are compromised by illness or cancer treatment or age. It has also developed an array of therapies that deliberately suppress immunity, to keep transplant recipients healthy and treat autoimmune* disorders such as lupus* and rheumatoid arthritis*. ( i ) vast numbers of people are living now who are especially vulnerable to fungi. Not all of our vulnerability is the fault of medicine preserving life so successfully. Other ( j ) actions have opened more doors between the fungal world and our own. We clear land for crops and settlement and perturb* what were stable balances between fungi and their hosts. We carry goods and animals across the world, and fungi hitchhike on them. We drench crops in fungicides* and enhance the resistance of organisms residing nearby. (s) ELSE

始めの文のyoungがよく分かりません。名詞なのになぜこんな位置にあるんですか？

the same is (8) in sports. A person has to start young to learn well the complex coordination of the hundreds of muscles needed to play tennis, swim, or figure skate. Most champions begin training at an early age. Some successful competitors entered their sport after childhood, but they are the exception, not the rule. The same is true of adults who acquire native-like accents in a foreign language. But, taken together, advantages seem to offset the disadvantages of age. By You can indeed

なぜ3分の4aで最大値とならないんですか？＝がついてるから最大値はx＝3分のaの時と3分の4の時じゃないんですか？教えてください

354 基本 例題 223 係数に文字を含む3次関数の最大・最小 a を正の定数とする。 3次関数f(x)=x2ax2+α'x 0≦x≦1 における最大 値M (α) を求めよ。 類立命館大] 基本219 重要 224 000 指針 文字係数の関数の最大値であるが, p.350 基本例題 219 と同じ要領で,極値と区間の y を 端での関数の値を比べて最大値を決定する。 f(x) の値の変化を調べると, y=f(x) のグラフは右図のよう になる(原点を通る)。ここで,x=1/3以外にf(x)=f(1) 満たすx (これをαとする) があることに注意が必要。 よって、1/3, a (10/<a)が区間0≦x≦1に含まれるかどうか 3' で場合分けを行う。 f'(x)=3x2-4ax+α²= (3x-a)(x-a) 解答 f'(x)=0とすると a x= a 3' a>0であるから, f(x) の増減表は次のようになる。 a ... a ... - 0 + a a 3 ax まずは、f'(x)=0を満た すxの値を調べ, 増減表 をかく。 <a>0 から 0<<a x 3 f'(x) + 0 f(x) 極大 極小>>(0) ここで,f(x)=x(x2-2ax+α2)=x(x-α)から x= 4 ()=(-a)-a, f(a)=0 1/3以外にf(x) = 27 を満たすxの値を求めると, 4 f(x)=から 27 4 x³-2ax²+ax-7a²=0 (*) 曲線 y=f(x) と直線 y= v=1は、x=1/3の 点において接するから、 f(x)-(x-1) で割り切れる。このこと を利用して因数分解する とよい。 XC ゆえに (x-1)(x-/1/20)-0 1 -2a a² =0 a 5 02 27 3 3 x=1であるから 4 x= a 5 4 1 a a² 0 うになる。 よって, f(x) 0≦x≦1における最大値M (α) は,次のよ 3 a 4 a² 3 9 [1] 1<- a すなわちα>3のとき [1] 1 - a 0 3 f(x)はx=1で最大となり a2-2a+1 M(α)=f(1) 0 13 -最大 a X 指針」 ****** ★ の方針。 [1] は区間に極値をとる xの値を含まず 区間の 右端で最大となる場合。

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

【関数の連続】 この問題に対して私の回答は正しく書けているのか確認お願いしたいです🙇丸をつけた後に不安になってきました💦細かいことでもいいので何かあったら教えてるれると嬉しいです！

関数f(x) を次のように定める. x2+ax (x <1) x-1 f(x)= [x] (1≦x<2) Joi 2+bx+α (2≦x) ただし, [x] はヱを超えない最大の整数を表す. このとき、f(x) がすべてのxで連続となるようなα, bを求めよ.