接線の問題です。下線部の言っていることが全く分かりません。分かりやすく説明して欲しいです！

Check 例題 180 第3章 図形と方程式 次 例 題 99 円外の点から引いた接線2 ヴ+y=5 に点(3, 1) から接線を2本引く. そのときの2つの接点 をP, Qとするとき,直線PQの方程式を求めよ。 考え方」 (i) 離れ 考え方 接点の座標を P(x), w). Q(x2. 12) とおいて求める。 解答 接点をP(x), y), Q(x2, Va) とすると, 点Pにおける接線は これが点(3, 1) を通るから, 点Qにおいても同様にして, D, ②より。点P. Qは直線 3x+y=5 上の点である。 2点P, Qを通る直線は1本に決まるので,直線 PQ の方程式は, 円x+y°=r? 上の 点(x), )における接綱 Xx+y=5 3x+y=5 …① 3x2+ y2=5 …2 の方程式 X1x+ yy=r? YA d> 解答 3x+y=5 (別解)点R(3, 1) とする。 るの V5 P AOPR とA0QR は合同な三角 形だから,対称性より, ORIPQ これより,直線PQの傾きは -3 であるから, kを実数として, 直 線 PQは, y=ー3x+k とおける。 0 x Q (直線 OR の傾き) k ×(直線 PQの傾き)=-1 図より,k>0 原点と直線 PQの距離dは、 1- d= 13+1 V10 ここで,直線 OR と直線 PQの交点をSとすると、 AOPRのAOSP であり, OR=/10, OP=/5, OS=→R だから, 15:=/10 V10 <POR : ./ 低重心シャープペン 白·0.3mm BALANCED MECHANICAL PEN.0.3mm H 1 >21 ニ1 v G

1はDespite、2はdueであってますか？

|2 各組の文がほぼ同じ意味になるように, ( )に適切な語を入れなさい。 1)(a) Though it rained heavily, weclimbed toward the summit. (日本大) ) the heavy rain, we climbed toward the summit. (中京大) (2) (a) Our plane was delayed because of a mechanical problem. (b) Our plane was delayed ( ) to a mechanical problem. Hints! ■ (2) the Mississippi River 「ミシシッピ川」 (5) ship 「~を輸送する」 (9) sooth O 「~をなだめる, ~を落ち着かせる」 前置詞 85

下の5️⃣と6️⃣の質問に答える問題です。解答お願いします。問題の意味もあまり分からないので解説お願いします💦

dod me 5 About 700 years ago, people started to make mechanical clocks. At first, they used weights to power these clocks. The clocks told the hour with bells. However, the weights were big and heavy, so these clocks were difficult to move. 6 About 500 years ago, people improved their clocks. They used springs to power the clocks. The springs were small and light. So people could move the clocks easily. Eventually, people began to carry watches. [74 words) In-reading 5 What was the problem with mechanical clocks? 6 To improve the clocks, what did people do?

基礎英文解釈の技術100 クジラの公式は理解できるのですが、この文章が理解できません。 特に語句を補っている部分が分かりません。

82 演習 82(問題→本冊:p.165) A man like Kasparov studies chess constantly and has memorized large numbers of openings, closings, and midgame situations, so that in some respects he plays mechanically. A computer can, in principle, do this with greater memory capability and thus, eventually, outmatch any human being. But this no more shows any real superiority than when it carries out vast numbers of mathematical operations simultaneously. 【全文訳】カスパロフのような人は常にチェスを研究して相当数の序盤, 終盤そして中 盤を記憶してしまっていて,その結果,場面によっては機械的にチェスをする。 理 論的にはコンピューターはそれよりも大きい記憶力で機械的にチェスをすることが できるし,それだから結局はどんな人間にも優る。しかし, だからといってコンピ ューターのほうが本当にすぐれていることにまったくならないのは, それが膨大な 数の数学の演算を同時に行う場合と同様である。 【解説】 第1文で前置詞句1like Kasparov は man を修飾している。large numbers of 「相当多くの」。 So that ~ 「その結果~」。 in some respects は, 内容から 「場面によ っては」とした。 第2文の do this は play mechanically のことである。blo arb tud stuo2 bas 第3文の〈no more than>をマークするのがポイント。次のように語句を補うと 意味がはっきりする。 h elS R this no more shows any real superiority ([when it plays chess|) 0 atitのか S Vt S Vt 「これが何ら真の優越性を示すものではないのは」 this は前文の内容を指す

空白の部分を教えて下さい!! 他のところも間違ってたら教えて欲しいです🙇🏼‍♀️

0 まとめ 体が2つに分裂して新しい個体をつくる生物を答えなさい。 ミカツキモ A 3 例 アメーバ, ゾウリムシ, 右図A:® · 体の一部から芽が出るようにふくらんで新しい個体になる 生物を答えなさい。 例出芽酵母,右図B:③ tドラ *体の一部に栄養をたくわえて新しい個体をつくる生物を答 B えなさい。 例 オニュリ,チューリップ, 右図C:0 * ジャガイモのイモやオニユリのむかごのように, 植物の体 の一部から新しい個体をつくる無性生殖を何といいますか。 0 養生殖 * 栄養生殖は農業に利用されることもある。サツマイモ, カエデの栽培で用いられる方法をそれ ぞれ答えなさい。 サツマイモ…2 カエデ…B * 無性生殖でできた個体の特徴は, もとになった個体の特徴と比べてどうなっていますか。 の すべて同いであ.る。 Mechanical Penc

読み方が分からないので教えてください🙏

5 About 700 years ago, people started to make mechanical clocks. At first, they used weights to power these clocks. The clocks told the hour with bells. However, the weights were big and heavy, so these clocks were difficult to move. 5 6 About 500 years ago, people improved their clocks. They used springs to power the clocks. The springs were small and light. So people could move the clocks easily. Eventually, people began to carry 始める [74 words] 10 運ぶ watches.

ここの通訳をお願いします🙇‍♂️

5 About 700 years ago, people started to make mechanical clocks. At first, they used weights to power these clocks. The clocks told the hour with bells. However, the weights were big and heavy, so these clocks were difficult to move. 5 6 About 500 years ago, people improved tbaur clocks. They used springs to power the clocks.se springs were small and light. So people could move っる the clocks easily. Eventually, people began to carry watches. [74 words] 10

ベストアンサーの方フォローします この問題が分からないので教えてください。

1 When we need to see the time, we look at clocks or watches. Today we can check the time very 置き時計 easily. However, it was not so easy long ago. Time keeping_has a very interesting history. 簡単に 長い間,ずっと 時間の計測 Ancient people used nature to read the time. About 6,000 years ago, Egyptians used the sun. 2 They put sticks in the ground, and the shadows told them the time. These were some of the first 話す。教えるの過去形 clocks in the world. 3 At night, people could not use the sun. About 3,500 years ago, Egyptians started to measure time without it. They put water in pots. The pots had tiny holes in them. The water decreased …なしで little by little. The lines in the pots told them the time. 4 About 1,500 years ago, other people used fire. They burned candles, for example.. The candles gave them light, and people saw the time by the lines on them. 与えるの過去形 線 5 About 700 years ago, people started to make mechanical clocks. At first, they used weights to power these clocks. The clocks told the hour with bells. However, the weig were big and heavy, so these clocks were difficult to move. 6 About 500 years ago, people improved their clocks. They used springs to power the clocks. The springs were small and light. So people could move the clocks easily. Eventually, people 小さい began to carry watches. 7 Today, we have clocks and watches everywhere. This is the result of many great inventions and many people's efforts. Even now, clocks and watches are improving. 8 We cannot really see time, but ancient people tried to recognize it. They used different ideas and technologies to measure it. When we look at our clocks and watches, we can easily see the time. Now it is time to recognize the wisdom of those ancient people.

赤線を引いてるところでなんで答えがmeansになるのか教えて欲しいです。 お願いします🙇‍♂️

range of tools we use is amazingly wide.(1)Tool use was once thought to be one of the features that set humans apart from other animals. To be sure, humans have developed and used mechanical, electric and electronic tools for multiple purposes.(2)In no other animals can we see such sophisticatedand elaborate use of tools. To us humans tools are an important (b)(1.meaning 2.means) to control and manipulate our physical environment. (C)(1.During_ 2.While ) the development of civilization, humans'use of tools has improved and diversified. We humans not only use tools but make and develop a variety of new ones for different purposes. We can(d)(1.even 2.ever ) use tools to make other specific tools. In addition, the use and making of tools is handed down from generation to generation. Tool use by humans is not genetically transmitted by DNA (e)(1.and 2.but)

日本語訳はこんな感じので合っていますか？

時計の針の回る方向はどうやって 決まったのでしょうか Why do the hands of a clock turn right? In ancient times, people made sundials. Thev 3 looked at them and knew the time of the day. If you look to the south, the sun moves acrosS the P sky from left to right. With the movement of the sun, the shadow of the rod turns right on the sundial face. Later, people invented mechanical clocks with hands. The hands of those clocks turned right, like the sundial shadow.