解をもたないとき、<でなのに この場合、判別式Dは なぜ<=になるのでしょうか？ 理解できません教えて下さい、、

⑥⑥ 2次不等式-x2+2(m-1)x+m-7> 0 が解をもたないとき、定 数mの値の範囲を定めよ。 2020年度第1回到達度試験) 2次方程式-x2+2(m-1)x+m-7=0の判別式D≤0を解けば よい。 D=(2m-2)2-4×(-1)x(m-7) ≤0より、 4m2-4m-24 ≦ 0 4(m-3)m+2)≦0 したがって、 −2≦m≦3

この英語長文において、印刷技術の発達に必要な技術はどのようなものであるか50~200字で答えてください

木版画 鋳造 第3問 以下の文は、 S. Strandh の “Machines, an illustrated history" からの抜粋で ある。 次の文を読んで、設問に解答せよ。 (ア) The tools of precision mechanics were, without doubt, the technical pre conditions for making wood cuts and for the development of printing. The oldest dated wood engraving is from 1418. It shows fine lines throughout 細部 and a richness of detal, which imply that the tools used, the knives, burins, and so on, must have been eminently suitable At this time, it was only the precision mechanics of clock making which could achieve the technique required for such tools. 精密機械技術 (イ) A (woodcut was produced by transferring a drawing, reversed from left to right, onto a carefully surface-ground "block" of wood, after which the surface wood on either side of each line in the drawing was cut away with a burin of forged steel. The remaining wood on all 'surfaces which were to be white in the drawing were then cut away with gravers and gouges, so that the lines of the drawing became raised. They were then inked and pressed against paper. これは 理由では ないから、 (~のときに、何 が原因か は不明) The woodcut method spread rapidly in the late Middle Ages when pictures were rarity. At first, skilful craftsmen made the woodcuts, but before long, eminent artists were themselves cutting their own drawings in wood. One of the first was the German Albrecht Duerer (1479-1528) who, in 1498, published the famous pictorial series of the Revelation of St. John. Graphics had become an independent art form-based on the progress of precision 酒の mechanics! 可動式の The 1440s saw the first book printed with movable die-cast type. (The letter press printing method used by Johann Gutenberg (1399?-1468) was basically the same as the one used for printing woodcuts, but Gutenberg used cast, movable type instead of cut blocks. The production of dies for the type was made possible by the tools of precision mechanics, too. It does not detract from Gutenberg's contribution that printing with movable type has been practised in the Far East, or more specifically Korea, two thousand years prior to this. Several of the techniques described here, which developed so quickly during the technical revolution of the Renaissance, had had predecessors in other parts of the world. ' 金楼 にねじ を刻む 道具 ~をなら K あったもの

下から4行目のour need～のところなのですがheroesがto worshipの主語の役割をしているので英雄が崇拝するとなってしまうのですが訳は崇拝できる英雄となっています。何故でしょうか？教えて頂きたいです。

24 B はっ 明る All great men must be viewed (in two distinct aspects. There is th limited aspect in which they are great,] and there is the other aspe in which they are ordinary human beings (like the rest of us. No gre man lives constantly on the level of his vision. Like the rest of u の小さい in their daily lives, all are largely preoccupied with petty concern S V2 C they are prone to be moved by jealousy or bad temper, to say foolis 思いやりない ひれ with things, to act meanly, and to behave inconsiderately toward those w are close to them. Our need for heroes to worship, however, general S むし man F makes us disregard or deny what is ordinary (in a great man V5 0 √53 √3 the man (as he was we substitute, sometimes while he is still alive, ような↑ legend. 実際に そうであったような

この3つが分かりません。教えてください🙇‍♀️

wal Rainforest trees are used to make things which we use every day. Rubber, for example, is used to make many things. The fruits of many forest trees ( 7 ) — forest people have eaten them for thousands of years. Today, all over the world, people eat rainforest food plants; for example, coffee, tea, oranges, and rice. Corn, which is an important food for many people of the world, is another rainforest plant. In 1970, a disease destroyed half the corn in the United States of America. Scientists began to look for new species in the rainforests. In 1987, in the Mexican rainforest, they found a new species which is stronger than other species. But we nearly lost this new species, because people were already cutting down that part of the Mexican rainforest. Hollywood, Los Angele movie stud (1) knows how many useful plants are already lost because people have SHOULD destroyed many of the rainforests of the world. Directors, actors, and writ The trees of the rainforests help the Earth's air because their leaves use carbon dioxide and make oxygen, which we need to live. its high point in these year They are also important because they control some of the Earth's weather. Through they give out water vapor which makes heavy clouds. The clouds then move to other parts of the Earth and give rain. The clouds also protect the Earth their large leaves, from the sun. (ウ) 日 moved to like Today, the Earth is slowly getting hotter, and in some places changes in the weather are making life much more difficult. We need to learn more about the Earth's weather while we still have the rainforests. and see the golden

答えがわからないです、教えてもらえると助かります🙇🏻‍♀️՞

) excitement and interest for children, 14. These activities might ( but they rarely lead to deeper thinking. A. defend B. request 15. I have no knowledge of what ( A. I am expected C. to expect of me 1 ↓ C. generate D. abolish B. I am to be expected D. is expected of me

学校の宿題で、調べた市の2月の最高気温をデータ化して自分の意見をまとめるという宿題が出たのですが、自分の意見に自信が無いです。写真の1枚目は私が書いたプリントで、2枚目は書き方のヒントです。 私が考えたのは ⑥12％ ｢０°以上12℃未満｣に含まれる日数は100年前と比... 続きを読む

45 40 35 30 25 20 15 10 5 1学年 7章 まとめ 0 ① 階級の幅を3℃にして, 1920年~1924年と2020年~2024年の度数分布表をつくる。 度数(日) 階級 (℃) 階級値 (℃) 12 15 O ~3 3 ② 上の度数分布表をもとにして, それぞれのヒストグラムをかき度数折れ線をかく。 (日) 1920年~1924年 50 市の2月の最高気温について 0 6 ~9 18~21 21~24 24~27 計 3 ~15 ~18. 6 1年組番 名前 4.5 7.5 10.5 13.5 16.5 19.5 22.5 25.5 9 12 15 18 21 24 27 (°C) (日) 50 45 40 35 30 25 20 15 10 1920年~1924年 5 14 41 46 30 q 0 0 142 0 3 6 9 2020年~2024年 12 2020年~2024年 5 18 37 30 18 12 10 141 15 18 21 24 27 (°C) ③ 度数分布表をもとにして, 中央値をふくんでいる階級をそれぞれ求める。 1920年~1924年 9 °℃ 2020年~2024年 28 I 12℃以上 ④ 度数分布表をもとにして, それぞれの最頻値,平均値を求める。 ※小数第二位を四捨五入して、小数第一位で求める。 1920年~1924年 予想 2020年~2024年 1920年~1924年 12℃未満 未満 _% 15°C ⑤ 「0℃以上12℃未満」にふくまれる日数は, それぞれ全体の何%か? 最頻値 10.5°C 10.5°C 72% 42% ⑥ ①~⑤までで求めたことをもとにして, 2120年~2124年の5年間では「0℃以上12℃未満」に占める日数の割 合は全体の何%になると予想されるだろうか。 また、 なぜそう考えたのか ①~⑤の結果をもとに書いてみよう。 平均値 10.1°C 13.9°C 2020年~2024年 ⑥のようになっていくと考えた理由を、 現在の環境問題と照らし合わせて説明してみよう。

どういう構造なのかがよくわかりません。ご回答よろしくお願いします。

6.3.2 I said my prayers, a duty which I had often neglected, and in a little time fell into a really refreshing sleep.

模範解答はアとエが答えなのですが、どうしてアなのか分かりません。同計算して100倍になったのでしょうか🥲

問/資料Ⅲは,略地図VI中のオーストラリアについて 1960年と2020年の輸出入総額と貿易相手国別の 割合を示しています。 資料Ⅲから読み取れる変化として適切なものを,次のア~エから二つ選び,記 号で答えなさい。 【資料】 ア 日本との間の輸出入総額は,100倍以 1960年 上になった。 輸出入総額 イ 輸出入総額の上位にしめる国には, ア 41.8億ドル ジア州の国が増えた。 2020年 ウ 輸出入総額の上位にしめる国には,ヨ輸出入総額 ーロッパ州の国が増えた。 4570.2億ドル エイギリスとの間の輸出入総額は,減っ た。 2- 0% 20 イギリス 31.0% 35.3% 40 アメリカ 日本 12.1 9.5 フランス 4.9- 60 日本アメリカ 9.4 8.3 マラヤ連邦 4.0 80 その他 34.7 ニュージーランド3.8 その他 34.4 100 韓国 4.9 ニュージーランド4.4 ・イギリス 3.3 (国際連合資料ほかから作成)

添削お願いします🙇‍♀️

年度 英語 15 [II] Write (VI) opinions. Write your answer in about 100 English words, not counting punctuation marks. Mr. John Spence's opinion on e-bikes My electric bike is one year old on Thursday, and it was a 75th birthday present. I have only ever been a casual cyclist, but had given my old bike away, as my creaky knees combined with living at the top of a hill-meant that I rarely used it. But with my e-bike I feel so empowered. It is so easy to get around to do a few errands that it often seems quicker than using a car and having to find parking. If anyone is tempted by the idea, I strongly recommend giving it a try. Ms. Liz Ormond's opinion on e-bikes Mr. Spence's enthusiastic praise for e-bikes omits any reference to pedestrians. There is no mention that they are more dangerous than other bikes. Can he tell us what 19 OC DE BESLOT ACAI BESI TE OF 0.8. safety studies have been done in relation to pedestrians, particularly in shared space, and what discussions have been held with organisations such as the Royal National Institute of Blind People? Also, since the motors are effective enough to propel bikes loaded with shopping and children, what effect would the additional weight have in a collision with a pedestrian? (Adapted from "Wheels of fortune: the pros and cons of e-bikes," The Guardian, May 19,2020)

⑷でなぜ1/5や4/5をかけないといけないんですか？

as (1) RE DOS 計算式 られるが、 量を一定に 式を立て 71 (1) ヘンリーの法則 (2) 酸素:32mL, 窒素:16mL (3) 酸素:窒素=1:2 (4) 酸素:窒素=4:7 (5) 小さくなる (2) ヘンリーの法則とボイルの法則により、水に溶ける酸素と窒素の体 積(それぞれの分圧での体積) は,圧力によらず一定である。よって, 溶けている酸素と窒素の体積は,1.013×10Paのときと変わらず, それぞれ32mLと16mLである。 (3) 物質量 〔mol]= 標準状態での体積 [mL] 22400 mL/mol で水1Lに溶ける酸素と窒素の物質量は, それぞれ 32 AMBIRAFFAX (0₂) 22400 16 22400 mol, F TE mol。酸素と窒素の分圧はそれぞれ1.013×10×Pa, (Hal 4 (SI) 1.013 × 105 × Pa であるから, ヘンリーの法則より,溶解した気体 5 7710 の物質量の比は, (a) 0.8-001x 20.8 32 22400 -mol x- 1 1.013×10³Pa×- 1.013×105 Pa 1 25 O2 の物質量 より,20℃, 1.013×10Pa (d) 201 013980. 4 1.013×10 Pax- 5 16 dommen. ・molx. 22400 ・mol× 28g/mol× 1 5 1.013×105 Pa N2 の物質量 =1:2 0.25 (4) 質量 〔g〕=モル質量 [g/mol]×物質量 〔mol] であるから, 溶解した 気体の質量の比は, [][][][\lom] 32g/mol× 32 22400 O2 の質量 (代) OH中 1.IX lom\g £8 21.501-20201 Tom 3.1 = 4:7 (5) 一般に,気体の溶解度は,温度が低くなるほど大きくなる。これは, 温度が上がると熱運動が激しくなり, 気体分子が溶媒分子との分子 間力を振り切って,外へ飛び出しやすくなるからである。DIXCES 02: Nz 1:4 Og0.S HOS () 1 比の値を求めるので, 1つ1つの具体的な数値 を計算せずに,約分する 1mol比Holm とよい。 4 22400 5 N2 の質量 56ad01408.$ £180.ES () {\om の MF 3673 (om 01.0 Tom 020.0 (loa) O