黄色チャートの例題103です。 マーカー引いた部分がなんのために書いてあるのかわからないです。 解答よろしくお願いします🙏🙇‍♀️💦

158 重要 例題 103 2直線 tが実数の値をとって変わるとき, 2直線l:tx-y=t, m:x+ty=2t+1 の交点P(x, y) はどのような図形になるか。その別 を求めて図示せよ。 名城大 CHART P(x,y) の軌跡 つなぎの文字を消去して, x, SOLUTION tx-y=t...... x+ty=2t+1 ······ .... ①, ② からtを消去すれば, 交点Pの軌跡の方程式が得られる。 ・・・・・･ 2直線 4. m の交点Pの座標(x,y)は①と②をともに満たす。 解答 l: tx-y=t [1] x1 のとき 図 ③ から t=- なお, ① ② が表さない直線があるから, 求めた図形から除外する点が出て ことに注意する。 ･①, m:x+ty=2t+1 t(x-1)=y t(y-2)=1-x [2]x=1のとき ③から ****** ...... ④に代入して COMER だけの関係式を導く ・② とする。 4 + m) = A - ³(²-) =(58 y=0 x=1, y = 0 を ④ に代入して t=0 よって,点 (10) 2直線の交点で ある｡ 以上から, 求める図形の方程式は 円 (x-1)^2+(y-1)^=1 ただし,点 1,2)を除く。 また,交点Pの描く図形は右の図の ようになる。 ・② とする。 inf. 図形的に考え 0=1÷ある。(解答編 照) srion x-1 両辺に x-1 を掛けて整理すると (x-1)+(y-1)^=1・ ⑤ においてx=1 とすると y=0, 2 ゆえに, x=1のとき, 点Pは円 ⑤から2点 (1,0), (1, 2) 除いた図形上にある。 MAPO y(y−2) *1 sk YA 2 0 ゆえに、 =1-x EXERCISES x A 84② 2 定点 (5,C 曲線 x2+y^ ①が表さないのは 直線 x=1 ②が表さないのは 直線y=2 よって除外する点 (12) である。 PRACTICE･･･ 103④ xy平面において,直線l:x+t(y-3)=0, m:tx-(y+3)=0 を考える。 tが実数全体を動くとき、直線ℓとmの交点はどの 85③ 関数f(x)= (1) 放物線 (2) 0<as (3) (2) 86③ 方程式x (1) 定数 (2) B 87③ 座標平面 x軸に指 88④ xy平面 (1) C よ。 (2) (1) 89⑨ (1) た (A) 90⑤ 座標 満ﾌ (1) (2) HNT 87 8 8

答えが公開されていないので、わかる方に答え合わせお願いしたいです😭🙇‍♀️

IV. (1) から (5) の各問いにおいて, 1.~6. の語句を並べ替えて空所を補い, 最も適当な英文 を完成させなさい。 解答は解答用紙2枚目 (記述式) の所定の解答欄に, (A)と (B)に入る語句の番号を記入すること｡ (1) I like English because I feel like a different person when I am speaking it. Although it is difficult to speak well, I enjoy the challenge. Someday I hope ( ) (A) ( ) ( ) (B) ( ) in English. 1. even dream 5. the level 1. young people 2. acquire 5. provide (2) Volunteering is a good thing because it teaches young adults valuable lessons about life. For one, it teaches them that charity is an investment. By helping others you also help yourself. Volunteering can also ( ) ( A ) ( ) ( ) ( B ) ) practical experience. 1. health 5. to 2. where 6. I can. 1. lacking 5. found of what roles physical activity, exercise and nutrition play. neither prevent nor manage disease. 6. an opportunity (3) There are at least four kinds of education people should get when they are young: physical education, moral education, intellectual education and nutrition education. Those ( ) (A) ( ) ( ) ( B ) ( ) have an understanding Without them we can Q wear 5. we 3. reach 2. in 6. interested 3. with 2. and 6. more (4) E-mail and other SNS applications are now the primary means of communication in much of the world. While this is certainly one form of socialization, it seems to be replacing social interaction in person. As a result, more ( ) ( A ) ( ) ( ) ( B ) ( ) in the social skills and values that are essential to their integration into a group or community. 2 clothes 6. to 4. to 3. need 4. to 3. are (5) Presumably fashion reflects our personalities. The ( ) ( A ) ( :) ( ^_-) (B) ( ) who and what we are. Many people wear clothes to try and fit in, some to impress others, and some just wear the clothes they own. Your clothing is a reflection of who you are one way or another. 3. like 4. mental or physical 4. people 4. show Basic Elements for Communication (t, 2019 4), 7, 35, 59, 71, 87 ( 改変)

線を引いている英文ですが、itが2回連なるのは何故なのでしょうか。 文の構造の説明もして頂きたいです。

10 shape? The brain interprets the image on the *retina in the light of all sorts of other "information" it receives. Perception, in fact, is by no means a simple recording of the details of the world seen outside. It is a selection of those features with which we are familiar. What it amounts to is that we do not so much believe (3) 15 what we see as see what we believe. Seeing is an activity not only of our eyes but of the (4), which works as a sort of selecting machine. Out of all the images presented to it it chooses for recognition those that fit most closely with the world learned by past experience. (6) I want to give a few more examples to show how what the brain has learned 0 influences the process we call "seeing things." Seeing, they say, is believing. But is it? An arrangement can be made in such a way that 3 person looks 15

添削お願いします🙇‍♀️

以下に示した表 (table) は Institute of International Education が実施したアメリカへの 留学生の数に関する調査結果です。 この表につい て、2008年と2009年を比較し、以下の①~④の4 つのポイントと具体的な数値を盛り込んで、90語 程度の英語でまとまりのある説明文を書きなさ い。数値は1語として数え、コンマやピリオドは語 数に含めません。 解答欄の最初の()に語数を記入 しなさい。 ① この表が示しているもの ② 留学生の総数の変化 ③ 中国からの留学生の傾向 ④ 日本からの留学生の傾向 Rank Place of Origin 1 China India South Korea Canada Taiwan Japan 2 3 4 5 6 25 Russia 2008 98,235 103,260 75,065 29,697 28,065 29,264 TOTAL 4,908 671,616 2009 127,628 104,897 72,153 28,145 26,685 24,842 4,827 690,923 Source: Institute of International Education, Opendoors ® 2010 fast facts Change 29.9% 1.6% -3.9% -5.2% -4.9% -15.1% -1.7% 2.9%

（3）について答えはthese new types of cementまたはnew types of cement ですがthe new types of cement でも大丈夫ですか？

6 2019年度 英語 Ordinary Portland cement-t produced by baking lime in a kiln and emits approximately one ton of carb a kiln and emits Cement production is responsible for cement. dioxide for every ton of approximately 5% of global man-made CO2 emissions, according to the World Business Council for Sustainable Development. Cement does absorb some carbon dioxide back from the atmosphere over time, One 2016 study estimated that between 1930 and 2013, the equivalent of 43% of CO2 released from lime during heating was reabsorbed by - although that percentage does not include carbon concrete products worldwide dioxide emitted by the fossil fuels burned to heat kilns, a significant contributor of says. Fennell notes. 東京医科歯科大前駅 - the most common form in concrete- CO2 emissions during production. Unfortunately, this absorption comes at a price, particularly when cement is used in structures that feature steel reinforcement bars (rebar) within concrete. vl(As) CO₂ moves through cement it changes the pH of the surroundings, Fennell says. Concrete loses its alkalinity and, when moisture and oxygen are present, causes the rebar to rust. 2) ad "Rusting steel can expand with great force to as much as nine times its original dimensions if you add up all of the layers of iron oxide," says Randolph Langenbach, an international consultant in building conservation. This expansion causes the concrete to crack, flake and crumble. Svi aft ni adosband huma Degradation is a massive concern, he argues, and problems are not limited to rusting rebar. Everything from air pockets left in the concrete mix when it's laid to salt air buffeting coastal-facing walls, or the use of beach sand in the concrete, can shorten a building's lifespan. As one specialist once put it to Langenbach: "If it ain't cracked, it aint concrete."qubong ao yas guidtyns ogde stornos 90 s of fshoqml is vatns mash *** long llopsd lust ay to Given the concerns about the environmental impact and structural longevity of concrete, why do we continue to build with it? addi Simply put, concrete is cheap, versatile, quick to erect and requires no of weight J

英語の空欄問題です 上からエ、ウ、ア、イ、オで合ってますか？？ まだ学校で英語の授業が無くて自信が無いです(><) よろしくおねがいします🙏🏻

1 次の各文の (1) She (2) My mother (3) This (4) I (5) We STEP 2 に適する語をア~オから選び, 記号で答えなさい。 7 made a birthday present for her daughter. ( very pretty in that dress. ( our school life very pleasant. my mother how to make an apple pie. that dog Max. 1 asked looked I bought ( ( ) ) ) named

主語＋動詞＋人＋前置詞＋補語で SV A of B 、SV A with B、SV A for B、SV A to Bなどは見分け方や特徴ってありますか？それとも覚えるしかないですか？ 例 the man robbed me of my phone he present... 続きを読む

下線部の訳し方を教えて下さい！

次の英文を読んで、設問に答えなさい。 The night was dark. And the house was dark. Dark-and silent. The two men ran towa quietly. One had a suitcase and the other had a lot of keys in hand. They reached the porch waited-listening. Silence. Perfect silence. "Let me try those keys. We've got to get in l” Ten-twenty-thirty seconds. With one of the keys one of the men opened the door. two men entered the house, closed the door behind them, locked it. 2003rt

問8なのですが、私はgreatを選び間違えました。 解答を見てshortが適することは知ったのですが、 greatが×な理由がわかりません。 また私は「great : 大きな」という意味で訳しました。

staying at home: they've also been detected in buildings. "Fibers could be released from carpets, and by putting on and taking off our clothes," Kelly said. The big question is what effect these plastics have on humans. The ( 7 ) answer is that we just don't know, but scientists including Kelly and Mahon.) 35 believe there is a potential health risk. * ? tan water kk *3 fertilizer * *4 sewage T 注 *1 seabird

生物の食物連鎖とかの問題だと思うんですけど誰かわかる方いますか？？？ 英語すみません💦

hhmi Biolnteractive Some Animals Are More Equal than Others: Trophic Cascades and Keystone Species Mean Leaf Area per Plant Over 18 Months without beetle with beetle Leaf Area per Plant (cm²) Control Ecology 2400 2200 2000 1800 1600 1400 1200 1000 800 Experimental 0 T 2 www.BioInteractive.org 8 10 12 14 16 Months After Start of Experiment 4 6 Refer to the figure to answer questions 12 through 17. 12. For both the plots with the beetles added and the control plots, state the mean tree leaf area per plot that the scientists recorded after running the experiment for 18 months. The mean tree leaf area per plot that the Scientist recorded after running the experiment for 18 months wit the beetles added is 1.7m², S 2.2m² 13. Compare the trends in mean tree leaf area per plot for both the plots with the beetles added and the control plots over the 18 months of the experiment. The area of the control plat for thinoceros beetles has d has increased at a nearly constant rate, the other is a gradua decrease at first, then a sudden decrease, and finally a dradua 18 Figure 2. Mean leaf area per tree. Initial measurements were taken before (0 to 2 months) and after (7 to 18 months) beetles were added to 40 of 80 plants. The light gray round markers represent measurements taken of the control plots, to which beetles were not added. The black square markers represent measurements taken of the experimental plots, to which beetles were added. Measurements were made on all leaves to calculate the mean leaf area per plant. Error bars represent standard error of the mean. 14. Draw two diagrams that show the food chains for both the experimental and control plots. Include increase. interactions among predatory beetles (if present), ants, caterpillars, and piper plants. Revised January 2018 Page 4 of 5