73 コがわかりません。問題文のa.b.c.0の0はf(0)の時なのか、単に普通の0の時なのか教えていただきたいです🙇‍♀️また、コの求め方が解説を読んでもわからなかったので教えて欲しいです🙇‍♀️ どなたかすみませんがよろしくお願いします🙇‍♀️

73 Clax+bcx+axtacx+ahx+abc=x3-(a+b+c)x+cal+Ac+ca)x-h 難易度 ★★★ 目標解答時間 12 分 SELECT 90 a,b,cはa<b<c を満たす実数とし、3次関数f(x)=(x-a)(x-b)(x-c) がある。 また,p=a+b+c, q=ab+bc+ca, r=abc とおく。 (xa)(xb) (xc)を展開することにより、f(x)をg, rを用いて表すと SELECT 60 f(x)=x となる。 + アx 10qx ウr f(x)=6x²-2x+ D= (-20)²-4.6.& = 4p² - 248 ウ | の解答群(同じものを繰り返し選んでもよい。) f(x)=3x²+2pxc+90=(2P)2-413.2=4P2-129=4(P2-38) y=f(x)のグラフとx軸が異なる3点で交わるので, f(x) 極値をもつ。 2次方程式f'(x) = 0 の判別式をDとすると, D= f(x) が極値をもつようなgの値の範囲は, g 4ペー才6)より,カ=0のとき 0 10 である。 -248 ]の解答群 P=0のとき-128>&<o < ≤ (2) === ③ M > f(x)は極値をもつので、2次方程式(x)=0は、異なる2つの実数解をもつ!! 以下, gヵ< 0 とする。 (1)p>0,r> 0 の場合を考える。 て 2次方程式 f'(x)=0の二つの実数解をα, β (α <β) とすると, α+β, αβ の正負に一 解と係数 である。 キ 1の解答群 textbf(x)=3x2+2px+a+b=,c= 3 P>0.長くだから、X+20.o ⑩ α+B>0,aB0 ① a+B>0,α < 0 ② α+β < 0, aβ > 0 ③ α+β < 0, aβ < 0 また, α, β, 0の大小関係について ク が成り立つ。 BCDより、卵のが負になるとしい はどちらかとなり、もう片方が負 がくるより、びの声が小さいため、 ク の解答群 ⑩ a <B<0 ①a<0</ ② 0<a<B さらに,f(0) ケ 10 であることから, a, b, c, 0 の大小関係は ケ ]の解答群 f(0)-rrioより、よって、f(0) <0 正 < ① ② コ の解答群 ⑩ 0<a<b<c ② a<b>0<e ① a<0<b<c ③ a<b<c<0 114 コ である。

73 蛍光ペンをひいたところなのですが、f(x)が極値を持つってことはf’(x)は必ず異なる2つの実数解を持つという解釈でいいですか？他の問題の時にでも公式じゃないけどそういうイメージで使えますか？ どなたかすみませんがよろしくお願いします🙇‍♀️

73 難易度 (athtcyx+(authctca)x-h 目標解答時間 12分 SELECT SELECT 90 60 a,b,cはa<b<c を満たす実数とし、3次関数f(x)=(x-a)(x-b)(x-c) がある。 また,p=a+b+c,g=ab+bc+ca,r=abc とおく。 (xa)(x-b)(x-c)を展開することにより、f(x) を p,g,r を用いて表すと f(x)=x となる。 ア アカxy 10qx » Ar f(x)=6x22枚+ D= (-20)²-4.6.& = 4p²-24& ウ の解答群 (同じものを繰り返し選んでもよい。) f(x)=3x²+2px+&D=(2P)2-413=4P2-129=4(P2-39) ⑩ + ① - y=f(x) のグラフとx軸が異なる3点で交わるので,f(x)は極値をもつ。 2次方程式f'(x)=0 の判別式をDとすると、Dガオ6g)より、p=0 のとき, f(x) が極値をもつような」の値の範囲は, カ カ の解答群 p=0のとき-128>0&co 0 10 である。 -242 < ①≦ ② = ③ ≧ ④ > f(x)は極値をもつので、2次方程式f(x)=0は、異なる2つの実数解をもか!?

つまりこういうことですよね？？ （文章を簡略化するとMr.Tan's recent research has received 〜.となりhas receivedがあるからそれより前のlearnとlisteningはthat節内の動詞だと考える、ということですよね？？

etomong of bebioebined erit 7. 7. Mr. Tan's recent research ------- lesnq won a prizoorto net that students learn more effectively when listening to classical music has received almost no attention from academics. (A) suggests (B) has suggested (C) suggesting (D) is suggesting erle tsrit ots (日) evodis (0) ted (C) ong edt bennotni temut silemo a

上の3問と下の並び替え3問を解いたのですが、写真のような解答で合っていますか？間違っていたら理由も教えて頂きたいです。

A Grammar Exercise Choose the correct answer to complete the following sentences. 1. The family expected (to welcome / welcoming) 100 people. 2. The kindergarten children enjoyed ( singing / to sing ) with their classmates. 3. The truck driver avoided (going / to go) through narrow roads. Put the words in the correct order to complete the following sentences. 1. (a sports event/decided/organize/the mayor/to). mayor decided to organize a sports event. The mayor 2. (my father likes / the guitar/ playing / the garden/in). My father likes playing the guitar in the garden, Professor forgot 3. (forgot/door/the/to lock/the professor/classroom). The to lock the classroom door.

∠ACB＝80°になるところまで分かったんですが、求めたいθと∠ACBが＝になるのはどうしてですか？三角形もしくは円のなんていう定義、性質を使うんですか？

80° 50円 B 50% A Q=80° -T

(3)①what (4)②whos (5)①that (6)③witch (7)②what なぜこの回答になるか教えていただきたいです🙏🏻‎🙇🏻‍♀️

7 誤りのある箇所を指摘して、正しく直しなさい。 (1) When he was ①asked why he was studying ②so hard, he replied ③that he was interesting in English culture. (2) With Da huge smile, Catherine ②waved her hand ③happily as she approached to me. (3) That is most dramatic ②is to see how broad and deep the support has become. (4) For a nation ②which food culture is admired ③all over the world, Japan ①depends to a surprising degree on imported food. (5) Some psychologists believe ①what a person's early childhood ②experiences affect how they behave as an adult. (6) Until the middle of the sixteenth century, the European new year began ②on March 25, the day ③when marked the beginning of spring. (7) Frankly, I can't imagine how my life would be like ③without music; it gets me through the day.

①オ ②ア ③ウ ④ア　⑤エ　⑥イ　⑦ア　 ⑧ク　⑨カ　⑩ウ　11イ になるのですがなぜそうなるか教えていただきたいです！

(1) (ア like / イ an honest person /ウdo/エJane/才made/力what/キ you think) break her promise? セウキ ウキオ I break her promise? (2) 自分のしたことを他人に認めてもらおうともらうまいと問題ではない。 (3) It(アapprove / 千 doesn't/ウ matter / 工may/才 others / 力 whether) of your work or not. It③ P of your work or not. I don't know why but it (ア as ノイ me/ウnone / エstrange / 才of / 力 struck/キthat) the passengers uttered a word. I don't know why but itエキ a word. (4) 我々のものの見方は、我々の知識によって大きな影響を受ける。 the passengers uttered ウオ (アwhat / イview/ウby/エ things / オhow/カwe /キis/ク very much affected) we know. ア ⑥ we know. (5) 失ってみて初めて, 持っているものの価値に気付くことがよくある。 We often don't recognize (ア have lost / ウ of / エ them / オthe things / 力 until / キthe value /ク we / ケ we've). (6) We often don't recognize ケ ⑧ I passed (アI took at / イbut I could never ウ the other courses / 工my university / 才pass botany / カthat / キ all). I passed (10 アウ (11)

ピンクで囲んだ部分のdestroyingとforcing、makingが何故ingが着いているのか分かりません😿分詞構文でしょうか？

You are preparing a presentation for the school science club, using this article from a scientific website. Reaching a Tipping Point: What to Do About the Problem of Space Junk? For over fifty years, slowly at first, but with increasing intensity, we've been sending objects up into orbit. Most of these items begin life as useful 使節を開始する有用な devices, such as the thousands of satellites that bring us information and give 装置として us our 21st century communication, but even these eventually fall out of use 結仕 使われなくなる or break. These satellites, living or dead, share an increasingly crowded layer, 混雑した層 known as near-earth orbit, with rocket parts, tools, and pieces of metal from objects that have already crashed together and broken into pieces. 粉々になる ?? This garbage poses a threat both (to working" satellites of which there are thousands), and (to the earth itself.) For example, in 2009 a disused Russian 使われなくなった module crashed into an active US satellite) destroying both and forcing the International Space Station to change course to avoid the thousands of broken ためらう pieces. While most junk that falls back to earth burns up in the atmosphere. 大気圏上空で larger chunks can occasionally hit the ground, posing a threat to people and Pieces that do burn up] leave pollutants in the atmosphere, such as Property aluminum particles, which can destroy the ozone layer アルミニウム 粒子 It's clear that removing space junk is vital if we are to maintain and build upon our current satellite network. The problem has been discussed continuously since the 1970s, when Donald Kessler, a senior scientist at NASA 継続的に described a scenario (later known as Kessler syndrome) (where a runaway 制御不能の others more and more likely. While the 2009 incident may be the first large cycle of collisions begins, with each collision creating more debris, making 衝突のサイクル near-earth collision, it is thought that Kessler syndrome has already begun with smaller objects. Since Kessler syndrome was first described, many solutions have been proposed, from using lasers to robotic garbage collectors, but cost has been an obstacle to most. In 2021, a Japan-based company named Astroscale launched ELSA-d (short for "End-of-Life Services by Astroscale Demonstration") to show

英検準一級の要約問題です。 添削していただけないでしょうか？🙇‍♀️

英検公式サンプル問題 ⚫ Instructions: Read the article below and summarize it in your own words as far as possible in English. ⚫ Suggested length: 60-70 words Write your summary in the space provided on your answer sheet. Any writing outside the space will not be graded. From the 1980s to the early 2000s, many national museums in Britain were charging their visitors entrance fees. The newly elected government, however, was supportive of the arts. It introduced a landmark policy to provide financial aid to museums so that they would drop their entrance fees. As a result, entrance to many national museums, including the Natural History Museum, became free of charge. Supporters of the policy said that as it would widen access to national museums, it would have significant benefits. People, regardless of their education or income, would have the opportunity to experience the large collections of artworks in museums and learn about the country's cultural history. Although surveys indicated that visitors to national museums that became free increased by an average of 70 percent after the policy's introduction, critics claimed the policy was not completely successful. This increase, they say, mostly consisted of the same people visiting museums many times. Additionally, some independent museums with entrance fees said the policy negatively affected them. Their visitor numbers decreased because people were visiting national museums to avoid paying fees, causing the independent museums to struggle financially.

英検準一級対策の要約問題です‼︎ 添削していただきたいです✒️よろしくお願いします🙇

Brazil implemented cable car system so that they acsess to the city of Rio de Janeiro from the all areas before Olympics. Because of it, people could see see fighting with better acsess. And it made people visit there comfortably. However, some people oblidged to leave there. due to construction of it. Futhermore, the system couldn't do well and finished.