解答の2行目です。 なぜx＞0なんですか？

例題 188 指数方程式の解の個数[2] 思考プロセス xについての方程式 4+ (a+1)2x+1+a+7=0 が異なる2つの正の解を もつような定数aの値の範囲を求めよ。 ReAction 文字を置き換えたときは、その文字のとり得る値の範囲を考えよ IA例題 76 4+ (a+1)2x+1 +α+ 7 = 0 が t=2* とおく 異なる2つの正の解をもつ t2+2(a+1)t+α+7 = 0 が どのような解をもつか? 対応を考える 1つのtの値に1つのxの値が対応 例題187 との違い・・・f(t) =αの形にすると, 式が複雑になることに注意。 | 4+ (a + 1)2x+1 +α+ 7 = 0 … ① とおく。 182 例題 2x = t とおくと, x>0より t>1であり, ① は t° + 2(a + 1)t +α + 7 = 0 ... ② 底を2にそろえ,2^ = t とおく。 平t=2x ここで, t = 2x を満たすx は, t > 1 である tの値1つに 対して x>0であるxの値1つが存在する。 よって, xの方程式① が異なる2つの正の解をもつのは, tの2次方程式 ②が1より大きい異なる2つの解をもつ ときである。 y=f(t) noirA YA f(t) = t° + 2(a+1)t + α +7 とおくと, (a+1) IA 109 y=f(t) のグラフがt軸と t>1の範 2次方程式の解と係数の 関係 (1) α+β = -2(a+1) 囲で2点で交わるのは,次の [1]~[3] を満たすときである。 01 D> 0 [1] f(t) = 0 の判別式をDとすると 3の場 2=(a+1)-(a+7)=q+a-6 4 a+α-6>0 より 平 (a+3)(a-2) > 0 よって α < - 3,2 <a [2] y=f(t)の軸が t>1の部分にある。 y=f(t) の軸は t = -(a+1) であるから -(a+1)> 1 (4) よってa<-2 [3] f(1) > 0 であるから f (1) = 3a+10 > 0 10 よって a> 3 t aβ = a +7 を利用して 判別式 D > 0 (α-1)+(β-1) > 0 (a-1)(B-1)>0 からαの値の範囲を求め てもよい。 ②を t2+2t+7=α (2t-1) と分離して,y=ピ+2t+7 とy=α(-2t-1) が t> 1 で異なる2つの共 有点をもつようなαの値 の範囲を求めてもよい。 ③~⑤ より 求めるαの値の範囲は 10 <a<-3 3 10 -2 3-3 a

写真１枚目の日本語分を英訳するという問題についてです。私は In addition to genes, aquired factors such as diet, smoking, drinking, stress, insufficent sleep and exerci... 続きを読む

LESSON 6 社会問題 「遺伝子検査の問題。 swab sample to a testing institute, one can know his or her risks of developing various diseases. The biggest issue is the accuracy of such Des tests. genetic testing venture 23andMe, dMe.Lin which Google has invested, has started offering the Personal Genome Service to "provide health reports on 254 diseases and conditions" for slightly less than $100. But the U.S. Food and Drug Administration in November 2013 ordered the company to halt the sales of its saliva collection kit due to concerns over the accuracy of its genetic examinations. (ア) 7 People need to be aware that the results of genetic testing only have a high degree of correlation with the risks for certain diseases. 遺伝子に 加えて、食事、喫煙、飲酒、ストレス、 睡眠不足、運動不足といった後天的 要素が、 癌を含むいくつかの病気の原因である。 Isals! 8 Users of genetic testing services should know that the discovery in genetic examinations of the presence of irregularities that raise the risk of developing certain diseases does not necessarily mean they will develop them. Y 9 So, it is not wise to rely solely on genetic testing. The results testing may cause some people to be unduly pessimistic about their future. The providers of genetic testing services must be careful when explaining C 30 9202 201 .) "Pros and cons es 2014/07/11>) g. nething to try or taking a sam xam. eing careless 即して日本 尿

英作文の添削をお願いします🙏🙏🙏

Write an essay on the given TOPIC. Use TWO of the POINTS below to support your answer. Structure: introduction, main body, and conclusion Suggested length: 120-150 words Write your essay in the space provided on Side B of your answer sheet. Any writing outside the space will not be graded. TOPIC Should the government do more to encourage young people to vote in elections? POINTS Freedom of choice Social responsibility Taxes Trust in politicians

写真中の第2文目は動詞がないのですが文として成立していないのですがこのようなものも可能なのでしょうか？

A S 形 Sがちゃ C 1 The room was warm and clean, the curtains drawn, the two table were being つまり lamp lamps alignt hers and the one by the empty chair opposite. On the 「分子構文にするとこっち a to her sideboard behind her, two tall glasses, soda water, whiskey. Fresh ice with cubes in the Thermos bucket. with two tall. とうろ(withが外れるので) Oh the s the

なぜwhichはダメなのですか？

(1d)- In spite of all these advantages, however, the Wright brothers might not have succeeded had they not been born at precisely the right moment in history. Attempts to achieve manned flight in the early nineteenth century were doomed because the steam engines that powered the aircraft were too heavy in 35 proportion to the power that they produced. But by the end of the nineteenth century, ( 4 4 ) the brothers were experimenting with engineering options, a relatively light gasoline engine had already been invented, and they were able to bring the ratio of weight to power within acceptable limits for flight. 40

(1)で関係詞の後の文が完全なのにwhereを使わないのはなぜでしょうか?

4 なんねん いきたい おもって ひめじじょう おとずれる (1) 何年も行きたいと思っていたので, 姫路城を訪れることができるとはとてもうれ I'm very happy to be able to visit Himeji Castle/which I've wanted to go to for years. ほんじつみなさん がいど つとめるひと しょうかい おもいます (2) 本日皆さんのガイドを務める人を紹介したいと思います。 I'd like to introduce the person who will be your guide today. つあーはいらいと ベーとーヴぇんうまれたいえ おとずれる (3) ツアーのハイライトはベートーヴェンが生まれた家を訪れることだ。 The highlight of the touy is visiting the house where Beethoven was born. わたしたち ひとびと こんぴ ゆ -た- ぎのうたかめるてだすけ ちいきかつどう きかく (4) 私たちの町は人々がコンピューターの技能を高める手助けをする地域活動を企画して Our town organizes community activities that help people improve their computer skills ゆうじん まい しずか むら しゅっしん そうぞうしいばしょ すき (5) 友人のマイは静かな村の出身なので, 騒々しい場所が好きではない。 My friend Mai whose hometown is a quiet village / doesn't like noisy places.

至急物理基礎について質問です！ (3)で、なぜ5倍振動になるのか分かりません。振動数が変わったり波長が変わったりしてもそのまま共鳴するのですか？？

10 リードlightノート 物理基礎 p85 問107 円筒の上端近くで振動数 420Hz のおんさを鳴らしながら, 円筒の水面の位置を徐々に下げていったところ,上端から水 面までの距離がZ = 19.0cmのときに初めて共鳴がおこり, Z2=59.0cmのとき,再び共鳴音を聞いた。 (1) このときの音の速さ Vは何m/s か。 (2) 共鳴したときの筒口の腹の位置は,筒の上端よりどれだ け上にあるか。 (3) l = 59.0cm として, 振動数のより大きいおんさを筒口で 鳴らすとき,共鳴が起こる最も420 Hz に近い振動数は何Hzのものか。 (1) 59-19=40 44=40 n=80cm V=80-420 V=33600cm/s V=336mls 4-5=59+1 52=240 (2) / -19=a 80-19=a 4 r = 48cm 音速は変わらないので 336=48f f=7Hz(cm) f = 700Hz 2336 a=1cm, (3) 421H2 420H2のとき3倍振動だったので、「振動数のより大きいおんさ」 より5倍振動となる。 59cmの中で5倍振動するので入が変わる 開口端忘れない! (9 Tall 59 420 880 33,600

下線部(A)の内容を60字以内で説明しなさいと言う設問なのですが、大まかな意味はこれで合ってるでしょうか？💦

解答欄にマークしなさい。 問 2, 間 3, 4, 問5の解答は, 解答用紙 守谷市祗1枚目 (マークシー 2枚目 (記述式) に記入しなさい。 Technology is rapidly and fundamentally changing the way most people do their jobs, disrupting (1) the nature of work and increasing the demand for new kinds of digital skills. The impact can be felt in all kinds of jobs. Gone are the days of copywriters (2) simply writing copy, for instance. Now they also need to be familiar with search engines and social media to know what will make their work more visible online. Architects need to be able to create digital concepts as their clients now often expect to see more than a 2D drawing. Accountants have to keep up with rapid digital advances disrupting their industry such as the growth of online filing. (3) Byron Nicolaides, CEO of PeopleCert, a professional skills assessment and certification business, says: "The digital skill gap describes the effect that has resulted from a shift. towards digitalisation, with the emergence of new professions, alongside the displacement of other roles, that now require continued digital training." Demand for people with high-level digital skills is greater than the supply of suitably qualified employees, and the gap is growing. The World Economic Forum estimates that by 2022 emerging technologies will generate 133 million new jobs in place of the 75 million that will be displaced. "If the demand for digital expertise is not able to be met by the supply, the resulting deficit in a skilled workplace will not only affect the ability of businesses to shape their own future, but will hinder the economic growth and generate a new reality of [digital] illiteracy (E4)," argues Nicolaides. The UK is the fifth most digitally advanced nation in Europe (Finland comes top) according to data from the European Union. It is already home to a large number of big tech businesses and the UK has more tech "unicorns" (start-up businesses valued at $1 billion or more) than any other European country. According to Tech Nation, a UK network focused on accelerating the growth of digital businesses across the country, in 2018 the UK continued to attract tech talent, employing 5 per cent of all high-growth tech workers globally. In Europe this places the UK behind Germany but ahead of Sweden, France, Denmark and the Netherlands. Despite (A) this encouraging news, the UK is still facing a significant digital skills shortage. A report from the Open University last year highlights the extent of the problem and its impact on UK companies, with nine in 10 organisations admitting to having a shortage of digital skills. Jules Pipe, London's deputy mayor (5) for planning, regeneration and skills, says the capital needs workers with advanced digital skills. "More than half of the capital's start-ups say a lack of highly skilled workers is their main challenge, while emerging industries -

次のテストでこの単語が含まれた長文が出るらしいです。一つは、早稲田大学法学部のものだと考えられます。残り2つを色々調べたんですが、なかなか考えられるものがありません。なにか心当たりありましたら、教えていただきたいです。

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1~4の穴埋めの答え教えて欲しいです！

Try it out! Sed ti blow beriw PUYA 1( )に入る語を選び,英文を完成させましょう。 必要であれば,適切な形に変えましょう。 minuos 1. If you don't hurry, you will ( ) your flight. montantes 20 3000 al 2. If I ( ) you, I would (ve) to study abroad soon after graduation. ) at better local 3. If Kate had learned more about the area, she could ( restaurants. 4. If Kei ( Hild English speaker. ) more interest in visiting foreign countries, he could be a better ZA? DXBBİM choose/have/ eat / miss / be