数Bのベクトルの問題です。 「①，②より」とありますが、①と②の式をどのように組み合わせたら答えが出てくるのか教えて欲しいです！お願いします🙇‍♀️

数学B Advanced 2章「ベクトル」 2直線の交点 (教科書p.73) 応用 例題 △ OAB において、辺 OA を2:3に内分する点を M,辺OB を4:3に内分する点をNとし,線 分 AN と線分 BMの交点をPとする。 2 OA = a, OB = 5として、OFを, 5で表せ。 点Pは辺BMの内分点であり、辺AMの 内分点である。 解 A AP:PN M BP:PM (S-1):5 = 香1-t A*t SN OM -a.m寺ス BP:lM-S:(1-S) とすると St(1-9 2 : (-S)Zts子a ニ こ AP:PN =t:(-サとすると F-(1-9dtt tt(I-t) :(-tス+号スo OQより ts/J.7 有え考ス (ス+0,ス4の (aとスス行ではない) 3

教えてほしいです！！お願いします！！

問題は【1】~【4】まである。答えは各問題の指示に従って別紙の解答用紙に書きなさい。 【1】次の英文を読んで設問に答えなさい。 Headaches are a big problem. Each year, millions of people suffer from severe headaches that affect their enjoyment of life, (1) not to mention their productivity at work. estimate, headaches cost individuals and businesses more than (2) $50 billion each year! (3) This is one of the reasons research into headaches has become a worldwide effort. Although he did not know much about how headaches work, Hippocrates was the first doctor to find a way to treat them. By 400 BC, Hippocrates had discovered that the *bark from willow trees was useful in treating pain. He made a white powder from the tree's bark and gave it to his patients. Hippocrates did not know it, but he was actually prescribing a natural chemical in willow bark called salicin. Whena person eats salicin, the chemical is changed inside his or her body into (4) salicylic acid. It turns out that salicylic acid is good for stopping pain, including headache pain, but it is bad for a person's stomach. In the 1800s, a chemist in Germany slightly changed easier for people to take. commonly known as aspirin. Aspirin was used throughout most of the 1900s to treat headaches, but doctors had little idea about what really caused headaches. When doctors can *diagnose the cause of a disease, they can find better ways to treat it. Therefore, as medical technology developed, doctors began to use it to learn more about the human brain and about headaches. In fact, according to one m to make it This new form of the chemical was called acetylsalicylic acid, now acid's Now doctors classify headaches ( A ) two general types: primary and secondary. A primary headache is a condition ( B) as only the headache itself. one caused by another physiological condition, such as an *infection or a *tumor. For primary headaches, doctors have determined three possible causes. headache is caused by stress. characteristically felt on both sides of the head as a dull, steady pain. Another kind of primary headache is the *migraine headache. Exactly what causes these headaches is not well understood, but many experts believe it could be abnormal brain activity causing changes in the brain's chemistry and blood flow. For many people, migraines are caused by certain (5) stimuli, such as poor sleep or particular foods or smells. A sufferer usually feels intense pain on one side of the head and becomes sensitive to light and noise. If the migraine is severe, the sufferer may *vomit repeatedly. The third kind of primary headache is known as the cluster headache. Cluster headaches typically occur around the same time each day for weeks or months at a time. The person ( C)from this kind of headache usually feels pain on one side of her or his head, and the pain is centered around one of the eyes. Doctors do not know much (6) at present about cluster headaches, but they seem to be more common among men and could be related to alcohol or other things that affect a person's blood flow. Using computers and more advanced medical equipment, doctors continue to learn more about what happens in the brain before and during headaches. Especially in the case of migraines, some doctors believe they have found the part of the brain that sets off the reaction for severe attacks. With these insights into brain processes, doctors hope new ways will be discovered to stop headaches before they begin. On the other hand, a secondary headache is One kind of primary Doctors usually call these tension headaches, and they are 注: bark 樹皮 diagnose ~を診断する、~を突き止める 感染症·伝染病 migraine (headache) 偏頭痛 infection tumor 腫場 vomit 食べたものを吐く (出典:READING FOR THE REAL WORLD 3rd edition, Compass Publishing より)

添削お願いしますm(_ _)m

ライティング mu 0m0 ●以下の TOPICについて, あなたの意見とその理由を2つ書きなさい。 POINTS は理由を書く際の参考となる観点を示したものです。ただし,これら 以外の観点から理由を書いてもかまいません。 and al ●語数の目安は 80 語~100 語です。 4 ●解答は,解答用紙のB面にあるライティング解答欄に書きなさい。 なお, 解整 欄の外に書かれたものは採点されません。 and we. ●解答が TOPIC に示された問いの答えになっていない場合や, TOPIC からすれ ていると判断された場合は, 0点と採点されることがあります。 TOPIC の内容 をよく読んでから答えてください。 TOPIC Today, some people buy products that are good for the environmen. Do think buying such products will become more commOn m you future? Burope mum sdt POINTS ● Changing lifestyles ● Cost ● Technology o ori igoag met RicA iad mion basi ofu 00291 1 obte e c

英作文の添削をして頂きたいです。 1．伝統文化を知ってもらえる 2．英語力の向上に繋がる ということを書いたつもりです。 よろしくお願いします。

●以下の TOPIC について, あなたの意見とその理由を2つ書きなさい。 ●POINTS は理由を書く際の参考となる観点を示したものです。ただし、こ れら以外の観点から理由を書いてもかまいません。 ●語数の目安は 80語~100語です。 TOPIC The Olympic Games are held in different cities around the world. Do you think large international sports events are good for cities? POINTS ●Tourism ofsn Economy Security 大問 4 英作文」

問６です。答えはsatisfiedなのですがなぜsurprisedではダメなのでしょうか？

ア. economic イ.economical ウ.explosive エ,expensive オ.exclusive )with the result of his mid-term examination. 問6 John's mother was quite ( ア.surprised イ.surveyed ウ. submitted エ,satisfied オ. stopped 問7 Mary gradually ( ) to her new environment. ア adonted イ.amazed ウ.advantaged エ. attracted オ dontad

こういう問題めっちゃ苦手なんですけど、塊を暗記するしかないんですかね、、 どんな勉強すればいいかアドバイスいただきたいです！

(I) 次の(a)~(h)の空欄に入れるのに最も適当な語(句)を1~4の中から一つ び、その番号を記入せよ。 l、 (a) Mary asked my advice ( ) study at university. y as to what subject she should 3. on to what subject she should 2. on what subject should sh 4. about what subject shoulc The city official 6rdered that the building( 1. should pull down 2ノ be pulled down A to be pulled down 3. does pull down ャンセルしてた ) in a row she has cancelled. ( This is the third date 2. They were three dates 3. There were three dates 4. They are three of dates の 気にいる ) I'd reéommend( ) to your manager in advance to check v phone call is necessary. 1. talk (22 that talking 4. for you to talk X~ talking In the uhlikély'event of an emergency, please ( ) the instr the crew. 2. be sure to following 1L follow 4. you must follow 3. you will follow

And now we hear about animals and plants going extinct every day ー　vanishing forever． この文のgoingとvanishingは、どういう意味で使われてますか？ 動名詞なのかなんなのか分か... 続きを読む

なぜ22番の答えが1なのかわかりません わかる方いらっしゃったら解説お願いしますm(_ _)m

2 次の英文A、Bを読み、その文意にそって(21) か ら(26) ま での A その番号を解答用紙の所定欄にマークしなさい。 )に入れるのに最も適切なものを 1,2、3、4の中から一つ選び、 /6 Cycles of Changece The bicycle is an efficient means of transportation. It was invented in the 19th century, and since then, it has been improved many times. Recently; electric bicycles, or "e-bikes," have become widely used. Unlike a regular bicycle, an e-bike has a motor, which allows the rider to go up hills more easily. Sqme cycling fans think that it is "cheating"” to use a bike with a motor. Nevertheless, e-bikes are quickly ( 21 ). In fact, e-bike sales in the United States were eight times greater in 2018 than in 2014 according to one survey. Researchers say this is good news. They claim that e-bikes may have a positive effect on people's health and the environment. One major advantage of e-bikes is that older people and those who do not exercise regularly can cycle. This makes it easier for them to commute to work by bike, which is better for the environment than traveling by car. ( 22 ), e-bikes allow more people to cycle as a hobby. People who could not ride along rough roads or up mountains, for example, can now do so. p Some cycling experts, however, point out problems with the increased use of e-bikes. For one, riders of e-bikes are more likely to be involved in accidents. In response, some people want speed limits to be lowered and other measures to increase safety, such as bike paths. Most importantly, experts say riders of both e-bikes and regular bikes should be careful. It does not matter if a bike has a motor or not. The important thing is to enjoy cycling ( 23 ). 2 causing new problems 4 improving the environment (21) 1 reducing electricity use 3 growing in popularity 3 By contrast, 4 Despite this (22) What is more_ 2 Therefore 2 together with friends 4 while staying safe (23) 1 during the warm months 4 3 in order to keep fit 13の他 21たっク曜師に 4z070も copyright2021 公益財団法人日本英語◆ *ます

この英語の文章の日本語訳と、ー（ダッシュ）の意味を教えて欲しいです。🙇‍♀️ ダッシュの意味はこの文章で使うことでどんな効果があるのかもあれば教えてもらいたいです。 これは教科書に載ってる長い文章で地球環境サミットで女の子がやったスピーチのやつなので前後の文がないとわか... 続きを読む

single And now we hear about animals and Dlants qoing extinci we ma Ow aw: v. every day - vani shing forever. edy. E

こちらの回答があっているかお願いします！ 36 C 37 D 38 A 39 C 40 D(A)? 41 D 42 A 43 D 44 C 45 C

Questions 36-38 référ to the following information. Simple Recipe for Tomato Soup Cook onion in butter, then add flour. Add milk gradually while stirring,. then add tomatoes to the white sauce. 1cup cooked tomatoes 1/2 onion, sliced 1 tablespoon flour 1 tablespoon butter Total preparation time: 15 minutes 1 pint milk Serves: 2 36. Which of the following is NOT needed to 38. How many people is this tomato soup for? make this soup? (A) Two (B) Four (A) Vegetables (B) Flour (C) Cream (C) Six (D) Eight (D) Milk OBCO AB00 C d 37. According to the recipe, what is the final step? (A) Cook the onion (B) Add the flour (C) Put in the tomatoes (D) Stir the mixture