数Iの二次関数について質問です。 重解とはどういうことですか。 教科書よんだり調べても全くわからないです泣 この画像の赤線のところがなぜそうなるのか教えて欲しいです！

判別式とは結論から言うと、二次方程式の実数解がいくつあ るのかを判定できる公式です。 -6 ± V62-4ac -6±√62 x 2a この二次方程式の解の公式の中には平方根が含まれていま す。 もし、 平方根の中身が負になった場合、 実数解を持たない ことになります。 Titil. 高校生になると「虚数解を持つと習いますが、 中学の数学では 「(実数) 解がない」と言います。 また、平方根の左には±があります。 平方根の中身が0になる時 は±0 すなわち解が b x 2a の1つになります。 これを重解を持つと言います。 このように、 平方根の中身の値によって、 実数解の個数が変わ ることがわかります。 そこで、平方根の中身だけ抜き出した D=62-4ac を判別式(Dは英語表記"discriminant"の頭文字から)と呼 び、その値によって二次方程式の解がいくつあるのかを判別しま

英語　 この3問についてです 場所,whichと,whereの使い分けを教えてください

(2) €1, 旅行したのか。 そこは僕が一番好きな都市なんだよ。 [ city / dié / in London/is/有名詞 You Did you travex myfavorite/ trável/yo ] ? where ascore. TS favorite my city In Concion. (3) あなたと初めて出会ったニューヨークにもう一度行ってみたいわ。 I want [go/I / met / Ney York / 16/ to / you ] for the first time. To go 10 New York, where 2 (4) その犯人が逮捕された場所を教えてください。 mer Yo you. 国or回 今日はありえない [ arrested / mé / the place / please / tell the criminal / was ] . Please tell me The place which the criminal was arrested (5) あなたがどこに行こうとも、私、ついて行くから。 were

英語の長文です どこに文法表現があるか知りたいです！ よろしくお願いします。

5 UNIT3 Reading Passage 10 15 20 20 25 30 Listening When important events are happening around the world, most people turn to traditional media sources, such as CNN and BBC,¹ for their news. However, during the invasion of Iraq by the United States and its allies in early 2003, a significant number of people followed the war from the point of view of an anonymous² Iraqi citizen who called himself "Salam Pax" (salam means "peace" in Arabic, and pax means "peace" in Latin). Salam Pax wrote a diary about everyday life in Baghdad during the war, and posted it on his web site. Pax's online diary was a kind of web site known as a "blog." Blogs, short for "web-logs," are online diaries usually kept by individuals, but sometimes they are written by companies and other groups of people. They are a rapidly growing type of web site on the Internet. There are estimated to be several hundred thousand blogs on the Internet, and with the popularity of other social media sites, the number of people writing online about their lives continues to grow. may find A blog differs from a traditional web site in several ways. Most importantly, it is updated much more regularly. Many blogs are updated every day, and some are updated several times a day. Also, most blogs use special software or web sites which are specifically aimed at bloggers, so you do not need to be a computer expert to create your own blog. This means that ordinary people who computers difficult to use can easily set up and start writing their own blog. In 2003, the Internet company AOL³ introduced their own blogging service, enabling its 35 million members to quickly and easily start blogging. There are many different kinds of blogs. The most popular type is an online diary of links, where the blog writer surfs the Internet and then posts links to sites or news articles that they find interesting, with a few comments about each one. Other types are personal diaries, where the writer talks about their life and feelings. Sometimes these blogs can be very personal. There is another kind of blogging, called "moblogging," short for "mobile blogging." Mobloggers use cell phones to take photo's, which are posted instantly to the Internet. When the content and images posted online involve news subjects, mobloggers become citizen journalists. In fact, the Korean web site OhMyNews was a well known source for articles from international citizen journalists. However, in 2010, OhMyNews stopped posting new articles. Instead, it is now a blog site where citizen journalists can choose what makes the headlines, or just share ideas about how regular people are changing the news world. Anyone who visits the web site of a big media company can clearly see how the idea of blogging has changed the reporting of news. Quite often, a list of reader comments follow news articles. It seems that the news is becoming less like a report or a lecture, and more like a conversation, where anyone can join in. CNN, BBC Cable News Network, British Broadcasting Corporation anonymous not named; unknown 3 AOL America Online

高1数学です。D=(k+1)²-4k(-k+2)ってどこから出てきたんですか？どうやってこの判別式に変化したのか教えてほしいです(T . T)

10 グラフCとx軸の共有点の個数を求めよ。 【グラフとx軸の共有点の個数】 kは0でない定数とする。 xの2次関数y=kx²+(k+1)x-k+2の 考え方 2次関数y=f(x)のグラフとx軸の共有点のx座標は2次方程式f(x)=0 の実数解であるから, f(x)=0の判別式の符号を用いて共有点の個数を調べることができる。 解答 2次方程式 kx2+(k+1)x-k+20の判別式をDとすると (k-1) D=(k+1)²-4k-k+2)=5k²-6k+1=(5k-1) ここで Cとx軸の共有点の個数について D<0のとき0個, D=0のとき1個, D>0のとき2個 であるから 求める共有点の個数は 1<x<1のとき0個 k=1,1のとき、1個 k<0.0<k</13,1<kのとき 2個 答 ◆グラフの頂点のy座標に着目 してもよいのだが, グラフが下に 凸か上に凸かわからないので、場 合分けが必要になる。 この問題 は、判別式の符号を利用する方 簡単である。 k0 であることに注意。

長文になります。 「Ironically, married women managed to make inroads into the labor market despite the discrimination they faced during the Great ... Read More

黄色のマーカーの部分のsvocなどを教えていただけないでしょうか？(..)

plainly Dreaming is a universal phenomenon, though much of what we dream may be forgotten, and some few persons are able only rarely to remember their dreams on waking. The dream represents mental activity during sleep. For this reason the workings of the unconscious mind can be more p 5 seen here than anywhere else. Ordinarily the thoughts and wishes of the unconscious mind are unknown to us, though it contains the source of creative and instinctive energy. As the oldest part of the concept-forming apparatus, it makes liberal use of such primitive methods of representation as symbolism. In a very general way, the unconscious mind of present-day man may be 10 compared to the conscious mind of the caveman, and dreams often remind us of the picture writing of the caveman, where a relatively few simple pictures used as symbols told a detailed story of events. In addition, it is the function of a dream to express a wish, but since the wishes of the unconscious are often highly instinctive in nature, they would be 15 as disturbing to most modern persons as would the acts of a caveman in present-day society. Therefore, most dreams are disguised enough to conceal their true meaning from the dreamer. This is accomplished through the intervention of the conscience, a much more recently developed function of the brain. In psychoanalysis an effort to get the true meaning of the dream is 20 made by having the dreamer give all his thoughts and feelings about every element of the dream. These are then pieced together by the analyst, who uses his knowledge of the life history of the individual as a reference point. By this means, unconscious thoughts and wishes, as well as long-forgotten experiences, can be revealed so as to give the dreamer a much more complete understand- 25 ing of himself. Passage 35 Psychoanalysis ー語句と構文- 13. on waking = /17. As the oldest part of the concept-forming apparatus, it makes = それは概念を形成するための装置一式の中の一番古い部品と ・・・ 訳) / L.9. may be compared to 〜 = 〜になぞらえるこ 272 - ( CLOSE ときに目く とし 16 1027 性質を るだろ ある。 見た BO 17 わ

地理の問題出す。 ③の下線部は適当なものなのですが、0m以下の低平地であることがどこから読み取れるのか教えてください🙇‍♀️

XI ③ ユカさんは、2万5千分の1地形図を使って、佐賀県内のいくつかの地域の特 徴を読み取った。 次の地形図 (80%に縮小, 一部改変) から読み取れることが らとその背景について述べた文として下線部が適当でないものを、 下の①~④の うちから一つ選べ。 M 3 " n ・ビ 11 11 . U In V 11 n 18 ● 12 11 (1 20 11 11 11 11 11 FAL 「 11 OF 1. 18 11 H 14 # 11 OUTRAS ・ [1] 01 H 11. in 11 11 "1 "' ・ 11 ツ "1 NO 11 11 0 " 11 "1 "" "1 "1 $1 IF 1 2 〃 11 ** Is w 11 13 "1 11 11 " 11 13 11 " 〃 〃 wwwwwwwwwwwwwwwwww ミニ 11 11 0 い 11 11 E L 711 8 Liv "1. at Wh" 11 (8 1 (1 -₁₁ 11 13 い " N 11 13 "1 10 14 - 返 A 11 11 04 13 11 5 11 40 P "1 W T X" AL 1. い 11 ター 1 -- 1.6 Lamountsert V 11 FARI 11 it 1 11 14 C H Ti 11 14 11 11 11 11 I. 「 GREE 11 (1 NO 18 . 11 " 14 I 11 " 11 ..5 11 11 11 い "" E 18 山 11 11 trimitetting 山 11 〃 15 10%) 11 "1 11, H 11 " 11 200 11 18 11 11 11. 1 " 11 lu 14 11 0 af 17 "1 (1 11 (23 13 11 11 11 Su 21 11 "1₂ 11 16 1 31 h " 45. 11 11 11 "1 〃崎 16 TIF FEY 11 本線 11 境古賀 10.1 川川 11 "1 171 W 1. " 11 "8 KONT fill 11 ti "1 " "1 mura RET "1 ✔ Gra 16: ANN 11 re 11 " "1 11 " C 224 B 分 1447 48 108 出 3km " 11. [11 MO 4/1/" " Gi " it 11 10. 41 " 11 11 "D in 11 "0. UX 11 " d 11 11 KINDO 7. 11 11 " 11 11 〃 11 11 #||+++++++ 11 11 fy al 11 ●ヒント ) す 地形図を用いた問題は, 必ず縮尺を確認する｡ 地形図上の長さから実 際の距離を割り出す式 は 「地形図上の長さ× 縮尺の分母」。 30N D BA (0 ① A220) XOTAJERTUC

画像横になってすみません blow「息を吹きかける」、steaming「湯気の立った」はわかったのですが、間にあるこのacrossってなんですか！？ blow acrossで繋がってるのかなーって思ったのですが辞書引いても出てきませんでした😭 よろしくお願いします

3 <英文構造> Somewhere, millions of years ago, just after learn... 同格 e fire, the primitive human was faced with a difficult technological dilemma: how to cool his piping-hot food enough to be コロン以下で dilemma の内容を説明 疑問詞 + to 不定詞 「・・・するのに十分に｣ able to eat it. Surely he must have burned his tongue enough times. He would have to find 助動詞 + have done 過去の習慣を表す would a way of eating the hot stuff. Then he must have discovered that by putting his lips together 助動詞 have done discovered の目的語 and blowing across) a steaming bowl of mammoth stew, the food magically cooled). Why? He S hadn't a clue, but it worked. FOCUS 助動詞 PE he must have burned his tongue : 過去の経験や完了の意味を含む助動詞 must + have done 「･･･ したに違いない」 の形→ 「彼(=原 始人)は舌をやけどしたに違いない」。 (→重要構文 31 て考えてす 間 この死行前は何 he must have discovered that ~ the food magically cooled: inc must have discovered の目的語は that 節 (that cooled)。 that を代名詞の「それ」 と訳さないよ うに注意しよう。 that節の主語･述語は the food (magically) cooled ｢食べ物が (魔法のように) 冷 めた｣。 その前の by putting 〜は「・・･することによって」 を意味する前置詞 by + 動名詞の表現。 buman puc すべき ... enough to be : how to cool は疑問詞 + to 不定詞 「どのように~すべきか〜の l.2 how to cool 仕方」の表現。 「であるほど十分に」 を意味し cool を修飾。 ｢そ (→ 重要構文 10 enough to be Hold wasob 313860 れを食べられるくらい十分に冷ます」 となる。 → 重要構文 11 ivillization l.3 find a way of eating the hot stuff : 同格を表す of でつながっている→ 「….する方法」と訳す。 RENSE) Vocabulary Check NDOW 訳 どこかで、何百万年も前、火を使うことを覚えた直後、原始人は、ある困難な技術的なジレンマ [板挟み ] に直面していた。 すなわち, ものすごく熱い食べ物を食べることができるくらいに冷ます方法である。 彼 はきっと何回となく舌をやけどしたに違いない。 彼は熱い物を食べる方法を見つけなければならなかった。 そんなとき彼は、 唇をすぼめて湯気の立つマンモスのシチューの入ったお椀に息を吹きかけることで、食べ 物が魔法のように冷めることを発見したに違いない。なぜなのか。 彼にはまったく見当がつかなかったが, その方法はうまくいったのである。 vody tavsundw) snsig 「原始の、原始的な」 ■ primitive □technological 「技術的な｣ □ burn MG SRI 文重 「~をやけどする」 Vocabulary Plust ~ in svol orwalqoo1 somewhere 「どこかで」 ■ be faced with 「〜に直面している」 □ put ~ together 「~をあわせる」 「手がかり」 ■ clue

教えて下さい

6. 7. 5 次の各組の文がほぼ同じ内容を表すように,空所に適語を入れなさい. 1. A lot of young Japanese love this song. This song 2. They didn't invite us to their party. 3. 5. to their party. We Did those students use the tennis court? the tennis court What language do they speak in that country? What language a lot of young Japanese. When did they build this tall building? When this tall building Where did the police catch the criminal? Where the criminal How many languages do they teach in this school? How many languages in that country? those students? ? criminal A the police? in this school?

どうしても単語が覚えれなく教えてください

3 日本語の意味に合うように, に適切な1語を書きなさい。 こんにち 1. 人々は,今日でさえ, 差別に苦しんでいます。 People are suffering from discrimination 2. あなたはいつも静かです。 You are quiet the time. 3. この町のネコの数はますます増えています。 The number of cats in this town is increasing 4. その建物は私たちの市でいちばん高い。 The building is the tallest our city. today. and more.