この問題の1番から解き方が分かりませんので教えて頂きたいです。よろしくお願い致します。

3章 運動とエネルギー 3 一直線上にある2力の合成 棒をとりつけた板を動かな いように固定し, 図 1~3の ように同じばねを棒に固定し て同じ長さだけのばした。 図1ではばねばかりAで, 図 2ではばねばかりBとCで同 じ向きに図3ではばねばかりBとCで反対向きに引いた。 このと き,図1のばねばかりAは1.2N, 図2のばねばかり Cは0.5N,図 3のばねばかりBは2.0Nを示していた。 次の問いに答えなさい。 (1) ばねばかりA.B.Cの示す値をそれぞれA, B, Cとすると、 次の①.②の大きさの関係は,どのような式で表されるか。 あと のア~ウからそれぞれ選び, 記号で答えなさい。> ① 図1のAと図2のB, C ②図1のAと図3のBC ア A = B+C イ A=B-C ウ A=C-BO 図 1 図2 図3 棒 70000000000円 0000000000円 AMMA * HITTAH 1.2N B 2.0N (2) 図2のばねばかりB, 図3のばねばかりCは, それぞれ何Nを 示しているか。 用真空も ST 0.5N B+c=0F 49 Sl 21 B-C = 2,0 3の答え(S) (1)① ア 2011 図2 (2) のB 図3 のC 6.7N 0.8N Code a

3枚目の写真のような問題って どうやって解くんですか? 私はいつも段落の最初と最後を見てるんですが 一問間違えてしまいました。ぼぼ勘だったりもするので教えて欲しいです🙇‍♀️

いる。 各問いに答えよ。なお, [1] Have you ever seen the 2D codes which have a special mark on the corners? For example, you can find the 2D codes in your textbooks. When you scan them with a tablet computer, you can see pictures or watch videos. Today, a A lot of people around the world use them in many different ways. This type of (2 2D code was invented by engineers at a car parts maker in Japan. [2] When cars are produced, many kinds of parts are needed. Car parts makers have to manage all of the car parts. About 30 years ago, car companies needed to produce more kinds of cars, and car parts makers had to manage many different kinds of car parts for each car. At that time, they used barcodes to manage the car parts, but they could not put a lot of information in one barcode. So, they used many barcodes. Workers had to scan many barcodes. A worker at a car parts maker had to scan barcodes about 1,000 times a day. It took a lot of time to scan them. The 0 000742 221101 barcode (バーコード) workers needed some help to improve their situation. [3] The engineers at a car parts maker in Japan knew the situation of the workers. They started to learn about 2D codes because 2D codes can contain more information than barcodes. There were already some types of 2D codes in the U.S. One type could contain a lot of information, but it took a lot of time to scan that type. Another type was scanned very quickly, but it contained less information than other types. The engineers at the car parts maker did not use these types. They decided to create a new type of 2D code which had both of those good points. The engineers needed a long time to create this new type which could be scanned quickly. Finally, they thought of an idea. They thought, "If a 2D code has a special mark on the three corners, it can be scanned very quickly from every angle." In this way, the new type of 2D code with special marks was invented by the engineers at a car parts maker in Japan. 2D code

英語の文法についてに質問です。 一と二枚目の緑の蛍光ペンのところの文法が合っているか確認していただきたいです。　 三枚目に参考資料を載せてあります。 お願いします🙇‍♂️

CUTTING EDGE 1-05 絶滅危惧種の選定 Have you ever heard of the "quagga"? Perhaps not, but you may have seen a zebra before. (1)The zebra is a horse-like animal with 形M distinctive black and white stripes covering its body. The quagga was a member of the zebra family, brownish in colour with white stripes FOS around the neck and the front part of the body. (2)It is often said that quagga looked like "zebra which had forgotten to put on their pajama trousers." Quaggas lived in Southern Africa, but they died out in the 19th century due to overhunting. We can now only see their wild beauty as 3stuffed specimens. Some researchers, however, have tried to "revive" the quagga. Because of its attractive stripe pattern, the quagga has gathered much attention from those interested in animal conservation. Those who would like to see the animals walk around the savannas again have conducted the Quagga Project for over thirty years in South Africa. Fas 模様のない (3)It turns out that the quagga is genetically close to the plains zebra. In this project, researchers have attempted to selectively breed plains zebras: they chose plains zebras which have fewer stripes and look slightly like quaggas. Baby zebras born to a slightly quagga- like mother and father may look more like the quagga, with a 13 significantly reduced number of stripes. (4)This project has achieved a certain level of success, producing several lovely baby zebras which have striking similarities [to ] the quagga. . However, should we be happy about this? (5)While this new generation of zebras is visually impressive, it only resembles [X]

(３)の丸で囲った部分はなぜ5aと4aになるのですか？

P.40 CODE] FC=ACAF = 5-3=20110A AAGAS LADE = ZEDB (=) , ARAC÷1 角の二等分線定理(神技② (本冊 P.12)) から, DA: DC = AF CF = 3:2 また, 題意 ∠CAD=∠ABC (=○)より, AAFDと△BEDの外角を利用して, ZAFE = LAEF (=•+0) · () (1) 右の上図より, △ABD%ACAD AB: CA = AD : CD AB:5 3:2, AB = (2) (ア)より, AE = AF = 3 EB=AB - AE 15 2 -3= (3) 角の二等分線定理 (神技②2) より, DA DB = AE : EB = 3 CD=②2② だから,BC= すると, すると, S = 4α × AAEF = 5a x (1) = 5a x ここで, AB: AE = よって, △ABC : △ACD AF AC また, 神技100 E (本冊 P.207) より, AF AE X AC AB したがって, 9 2 X 15 2 12 S: T= a: 5 || 2 = AAC 15 2 50/50 6 = 4a x = 52 5a :35:2より, T= AABC - AAEF = 5a - 2 19 5a = 12:19 ...... (1) 2 12 5a - H-08 31 - HA DELON A 19 B 解答 解答 15 2 9 2 54:4aとおく。 ます。 -A=48 B 20100 HA SI B HA HA E HA: 10- D 5-2 3 HA A 380A 5a 3 VF 9 4a E A T B 解答 3 D 12 10 D D

答えに辿り着ける気がしないです。賢い方お願いしますm(_ _)m

3数 01, 02, 0gに対し Sin30=3sind 4sin³0 Cos30-4005³0-30050 が成り立つとき, cose + cos₂ + cos03 = 0, sine + sino₂+ sin03 = 0 (01102) (0305 - Sin 0₁16₂) SmU3) 13 90²) 300 (0₁-02) +03) cos30₁ +cos30₂ +cos30=3cos(0₁ +0₂ +03), sin30, + sin30₂ + sin303=3sin(0₁ +0₂ +03) が成り立つことを示せ . -C053 01 + 0053 0₂ + 0-330 3 = (4005²³0₁ - 360501) + (4005³0₂-30030₂) + (4 005 03-300503) 4cos³0, +40³024005393 3005 (₁10₂) + 035 = 3 { Cos (0170₂) cos 03 - Sin(01-0₂) sin 03 } : [ I = 3 { (Cos 0₁ Cas(₂ - sind, sino ₂) cos 03 - (Sind; 005 02 +00s 0₁ Sinda) si-03 = 35 (050,100² 02 - Sindisinde) (-call-co) (sind, code to th) shu 0.-son)

教えてください！

100 明日はそれぞれ線分 AO, 線分BO, 弧AB上の点であり、 四角形CODEは正方形である。 また,Fは,弧BEを3等分 (②2)図で, AOBは線分AOを半径とするおうぎ形で,C,D, する点のうち,Eに近い方の点である。 AO=12cmのとき,次の ①,②の問いに答えなさい。 ① 次のかな符号にあてはまる数字を答えなさい。 BFの長さは, ア cmである。 ba 3 47 E 3 λ B TUN D

英読解の問題です。 すっかり忘れてしまったため何も分かりません。 3問教えて欲しいです。お願いします><

5. 次のメッセージを読み、 [4×3=12] (1)~(3) A~Dで適切なものに○をつけなさい。 Sarah Rogovin [09:20 A. M.] Good morning. Li Na and Dave. Could you let me know the latest on the Taipei trip? Li Na Tsai [09:25 A. M.] Everything is prepared at this end. I've booked a meeting room for three days, ordered refreshments, and arranged daily taxis to and from your hotel. Sarah Rogovin [09:28 A. M.] Fantastic. Did you remember that three people are vegetarian? Li Na Tsai [09:30 A. M.] Yes, they have separate meals. The price is actually a little lower for them. Dave Kaplan [09:31 A. M. 1 And I just confirmed the new flights for you and Chen Wang. Sarah. You're now flying direct from Singapore to Taipei at 6 P. M. on Sunday. My apologies again for the misunderstanding. Sarah Rogovin [09:34 A. M.] Thanks for sorting that out. Dave. This makes the journey much easier. Could you e-mail the electronic ticket to Chen Wang when you receive it, please? Dave Kaplan [09:35 A. M.] Consider it done. Li Na Tsai [09:37 A. M.] Sarah, I've arranged for a projector, but do you also need a laptop set up in the meeting room? Also, the staff there will give you an access code for the room; you may need to ask for it. a Wi-Fi signal Sarah Rogovin [09:40 A. M.] As you said previously that there's throughout the hotel you've booked, I'll use my own. Thanks again for your hard work, both of you. (1) Why does Ms. Rogovin ask about food? (A) She wants to eat in a separate room. (B) Her colleague forgot to order meals last time. (C) Some attendees don't eat meat. (D) She thinks the meals are too (2) What is suggested about the flights? (A) They are booked for Sunday morning. (B) The original booking was incorrect. (C) A discount was offered on the price. (D)) There will be a short stop on the route. (3) At 9:35 A. M.. what does Mr. Kaplan mean when he writes, "Consider it done" ? (A) He will forward a document. (B) He will call Mr. Wang. (C) He will reserve two seats. (D) He will order a taxi.

③(2)と④の解き方を教えてください！ 答えは ①24 ③(1)3 (2)2√265 ──── 5 ④26＋10√53 ───── 5 よろしくお願いします🙇‍♀️

⑤ 右の図のように, 線分ABを直径とする円Oの周上に点Cが あり, AB = 10, BC = 8 である。 ∠CAB の二等分線と円の交点 のうち, 点Aと異なる点をDとする。 また, 線分AB上に点E を, ∠AED=90° となるようにとる。 次の ① ③ ④ では に適当な数を書き、②では指示にしたがって答えなさい。 1 ① △ABCの面積は である。 ② △ABCODE であることを証明しなさい。 A ③分 OEの長さは(1) であり、線分CEの長さは である。 0 E 線分 AD を直径とする円の周上に点を, ECP の面積がもっとも大きくなるようにとると き, ECP の面積は である。

(3)が分かりません！なぜ√13分の2はダメなのですか？解説お願いします🙇‍♀️

(8% 第1問 必答問題)(配点 35) 1) [1]≦として, f(0)=3sin0+2cos0 とおく。 (1) 三角関数の合成を用いると, 13 f(0)=√ アイ sin(0+α) となる。 ただし, α は, sina = アイ を満たすものとする。 オ つ選べ。 cos a = (2) 0のとき,0+αのとり得る値の範囲は, a ≤0+a≤- ≤12+a Code オ であるから0<a<に注意すると, f(0) は,0=1 力 で最小値をとることがわかる。 000 a ② α- (3) さらに,f(0)=kが0≦ キ H アイ クケである。 カ に当てはまるものを、次の①~④のうちからそれぞれ一つず π 3 0<a</ ③ T 2 a で最大値をとり, T 4 7/2 ④ で異なる2つの解をもつようなんの値の範囲は、 AANTAL (数学Ⅱ・数学B 第1問は3ページに続く。)

svoc振り合ってるか見て欲しいです。分からないところは書いてないです。 （）はMで[]は従属節です。おそらく従属節じゃないのに囲っているところもあると思います💦

10 1 カジュアル・フライデー開決 1 The American weekend officially begins on Friday evening, b already by Friday morning there are signs that the weekend is just around the corner. You see fewer cars on the highways, and buses C 0 S C and subways are less crowded with people, too. This is because S v 5 some people take a day off on Friday to have a three-day weekend. S U 0 V → Things are also different (at work/ People don't wear the same clothes as they wear on weekdays) they dress themselves more casually. For instance, managers in the office may put on casual sports clothes(instead of coats and ties.) Some people put on blue jeans. 0 omnl. O This tor 7 « n ● 182 words 1 22