①の式に代入したあとの計算がわからないです(><)

154 00000 基本例題 99 曲線上の動点に連動する点の軌跡 点Qが円x2+y2=9 上を動くとき, 点A(1, 2) とQを結ぶ線分AQを2:1 に内分する点Pの軌跡を求めよ。 CHART SOLUTION 連動して動く点の軌跡 解答 Q(s,t), P(x, y) とする Qは円x2+y2=9 上の点であるから s2+t2=9 Pは線分AQ を 2:1に内分する点であるから y= つなぎの文字を消去して, x, yだけの関係式を導くた 動点Qの座標を(s,t), それにともなって動く点Pの座標を(x,y) とする。Qの 条件を stを用いた式で表し,P,Qの関係から,s,tをそれぞれx,yで表す。 これをQの条件式に代入して, s, t を消去する。・・・・・ 1.1+2s 1+2s 2+1 3 3y-2 x=- 3x-1 = t=- (2) よって S= 問 これを①に代入すると (3x^1)+(3/22) 2 =9 1\2 9 ゆえに (x-3)² + 2/(x-²)² = 9 V- 4 よって (x-12312+(y-12/3)=4.….… ② したがって, 点Pは円②上にある。 逆に,円 ② 上の任意の点は,条件を満たす。 以上から, 求める軌跡は ² 1•2+2t 2+1 中心 = 9 2+2t 3 |p.151 基本事項 1 (0-2)8 $=$ LOOR を満たすも 2 半径2の円 O (s,t) Q -3| YA 0 基本 101 A (1, 2) BATAS I P(x,y) -3 つなぎの文字 s, tを 去。 これによりPの条 件 (x,yの方程式) が得 られる。 VANUS 220-2300 23 円という POINT 曲線 f(x,y)=0 上の動点 (s,t) に連動する点 (x,y) の軌跡 ①点 (s,t) は曲線 f(x, y)=0 上の点であるから f(s,t)=0 s, tをそれぞれx,yで表す。 ③ f(s,t)=0 に②を代入して,s, t を消去する。途中で

manuscript draft document って何が違うんですか?よくニュアンスがわかりません。文章関係なのかなとはおもいますが

英文2段落目3文目のfor fairy talesのforは使ってという意味で使われているんでしょうか。、？ また、第4段落5文目が上手く訳せません、、、 これは過去完了でしょうか？？それとも、彼女は持っていた、1番初めのwrittenとdrawnをみたいにただの過去形で... 続きを読む

Your group is preparing a poster presentation entitled "The Woman Who 第5問(配点 15) c 15e uW y bos AS neighb A (20d dos Tot nongo in b s saoodt time a Wanti Created Peter Rabbit "using information from the magazine article below nob land her e Ved Pig ト popular character, Peter Rabbit. She brought her characters to life in b witty stories with finely detailed watercolors. a Br herit The daughter of wealthy parents, Helen Beatrix Potter was born on July 28, 1866 in South Kensington, London. She was educated at home and developed a love of literature and art. She used to practice her craft bv making illustrations for fairy tales like Cinderella and Sleeping Beauty. Also drawn to nature, she and her younger brother Walter kept many pets mice, rabbits, even bats and a hedgehog and she loved her family's long holidays in the Scottish countryside and the Lake District, a mountainous area in northwest England. in 19 The As a child and teenager, Potter made great sketches of her pets, as well as of trees and plants. She also kept a diary in which she recorded her Qpinions about cultural and political ideas and events. She wrote in a secret bs nsgst Peri 1866- Code that was not broken until fifteen years after her death. In the 1890s, Potter began selling her drawings.Potter's work was used for Christmas and New Year cards and an illustration of poetry. She was pleased by this success and decided to publish her own illustrated stories for children. In 1901, after the manuscript. was rejected by several publishers, she self-published her first book, The Tale of Peter Rabbit, She had first written and drawn a version of the story in a letter to the. sick child of her former private teacher.、The child was so delighted with it that Potter felt other children would be, too. She was right. The story of naughty Peter, who always gets into trouble because he does not follow his sisters' example and obey his mother's rules, was very popular. 、In 1902, the publisher Frederick Warne & Company printed a commercial edition, and it went on to become one of the most famous children's books of all time 1 Over the next twenty years, Potter wrote and illustrated twenty-two more books with that publisher, her early_observations of the animals and plants of her childhood often making their way into the stories. Potter's The Tale of Mrs. Tiggy-Winkle, published in 1905, for example, includes - 22 -

英検2級のライティングです！ 用いている表現の間違いなどがあれば教えて欲しいです。よろしくお願いいたします_(._.)_

fo Q,1t is often Saicd thit ne stauranto and supermorkets chouled try educe the amuunt f food that they with this opinion? throw away. Do you agvee C) t/Hcalth and safety / The enviament ーフ 1agree with restaurants ond supermarket. should toy t vecdece the amountof fod that throw anay. I hare two reason S First, this idea enables も vecduce begget fr od You using For example, fod is very expensive and often wused So if educe t. abandon fodsi you can use money fr othe things. you Secand , You Can preserve the enviomenT. Todlay , the enriroment is domaged by pople in the world becanuse we destoy natave in order to So you shauld vedece fod hat thmw gow regebble, There fre , I anay. ogle this gpinion. 93

分詞とは？という感じで分かりません。 以下の問題を解説して下さる方いますか？

く分割> 教科書 p.61 1 Change the verb to the appropriate form and complete the sentences. Ocoked 7boken payed Playiny O named Studied studying Qdisoverd 1. They usually eat only ( cook) fish. 2. You must keep your child away from the ( break ) glass. 3. The girl ( play ) the piano is Bob's sister. 4. The boy (name ) Jim won first prize in the contest. 5. I met a student ( study ) at a Japanese language school. 6. He talked about a plant ( discover) in Africa.

これについて意見を書かないといけないのですが、 意見の書き方教えてください。。🙇‍♀️🙇‍♀️

Date Reading TR 15-18 The solar system* is known to have eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Mars seems to be an especially interesting planet to the scientists who study planets. Robert Zubrin* is one of those scientists. There are two main reasons why he is so interested in Mars. の 5。 One reason is that Zubrin wants to determine if human beings will be able to live on Mars in the future. Though Mars is now a cold and dry planet, 。it is more similar to Earth の- than any other planet in the solar system. So there is a possibility that Mars is a place where human beings can live. In what ways are Mars and Earth alike? First, the soil and atmosphere of Mars is similar to those of Earth. Scientists found that the soil and 10 atmosphere of Mars contains many of the main elements* essential for human life. A Mars exploration rover* named Curiosity has been working on the surface of Mars to gather various scientific information about its environment. Second, the rotation* period of Mars is 24 hours and 39 minutes, which is very close to that of Earth. Third, there are seasons on Mars as there are on Earth. 15 等 The other reason is that, studying Mars, Zubrin thinks we can better predict the future of Earth. It is believed that there used to be a liquid like water on Mars a long time ago. If we can find out how and why Mars has changed into a (A) and (B) place, we may be able to better understand the Earth's future. Zubrin says, “We humans have changed the Earth's environment through our actions and activities. From our research on Mars, 20 we may be able to solve such problems as global warming. Mars may be the key to our survival on Earth." Not only Zubrin but also many other scientists are doing research on Mars. Studying Mars might not seem to be connected with our daily life, but actually it is. New discoveries can influence our future. We should remember that in that regard* Mars is a 25 very important planet for our future. (357 words) Robert Zubrin:ロバート·ズブリン main element:主要元素(人間の生命維持に必要な元素。窒素, 水素など) rotation:自転 (注) solar system: 太陽系 exploration rover : 探査車 in that regard:その点で

要約(日本語で)お願いします🙇‍♀️🙏急ぎです💧 できる範囲で大丈夫です。

Reading 88点 Grammar 30 Writing 10点 100点 Conversation 10 Listening 12点 Reading TR. 15-18 C C 6 The solar system* is known to have eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Mars seems to be an especially interesting planet to the scientists who study planets. Robert Zubrin* is one of _those scientists. There are の two main reasons why he is so interested in Mars. の 5 One reason is that Zubrin wants to determine if human beings will be able to live on Mars in the future. Though Mars is nowa cold and dry planet, it is more similar to Earth than any other planet in the solar system. So there is a possibility that Mars is a place where human beings can live. In what ways are Mars and Earth alike? First, the soil and atmosphere of Mars is similar to those of Earth. Scientists found that the soil and 10 atmosphere of Mars contains many of the main elements* essential for human life. A Mars exploration rover* named Curiosity has been working on the surface of Mars to gather various scientific information about its environment. Second, the rotation* period of Mars is 24 hours and 39 minutes, which is very close to that of Earth. Third, there are seasons on Mars as there are on Earth. The other reason is that, by studying Mars, Zubrin thinks we can better predict the 15 future of Earth. It is believed that there used to be a liquid like water on Mars a long time ago. If we can find out how and why Mars has changed into a (A) and (B) place, we may be able to better understand the Earth's future. Zubrin says, “We humans have changed the Earth's environment through our actions and activities. From our research on Mars. 20 we may be able to solve such problems as global warming. Mars may be the key to our survival on Earth." Not only Zubrin but also many other scientists are doing research on Mars. Studying Mars might not seem to be connected with our daily life, but actually it is. New discoveries can influence our future. We should remember that in that regard* Mars is a 25 very important planet for our future. (357 words) (注)solar system: 太陽系 main element:主要元素 (人間の生命維持に必要な元素。 窒素, 水素など) exploration rover: 探査車 Robert Zubrin : ロバート ズブリン rotation:自転 in that regard :その点で

【英語ですみません】stoichiometry CH4と2O2 のどちらが先になくなりますかって言う問題だと思うのですが、計算式の意味がよくわからないです。一つ目は、reality で、2つ目はimpossible って描いてあるので上のやつで計算するとおもうのですが、ど... 続きを読む

CHy 202 CO2 + 2 H20 Example: I hae 3mal CHy and 7 mol Dz which will nn out frst? CHy lininng ranctant 1 -runs put PRED IしTIDNS. 3 mo CH) ICO2 3mol CO,<realty run out of CHy all the CHhy wull be usedu I CHy ICO1) チ mol O21 Con) 202 xcess rlachint impossible! dont have enouyh CHn =35mol CO2 < 3 more thon enoush Somcull 6c let4 ove/anused

画像にも書いてあるのですが、聖地エルサレムの統治はどのように変化していったのか教えてください(>_<｡)

このかっこ2ってthink ofはダメなんですか？ なぜitなんですか？

[5] 日本語に合うように [ ] 内の語を参考にして英文を完成させなみい。 | を (① ペットにキツネを飼うのはふっつうではない [anusual'@⑳ It18 たnはろい| イ。 hwを pio ri 4 ②) 早朝に彼に電話をかけるのは不作法だと思う。 team 人@ 1 # Ithink (て rude イタ21 ME生かAS てop Ok SS ec him early in the morning.