✓をつけた問題について解説をお願いしたいです😭(選択肢で×をしているのは違うと分かりますが､他のものがなぜ違うかが分かりません💦)

2001 They will leave this country when the rainy season ℗ started 242 He's in Tokyo now. = He ( 2 has been 2003 John and Mary ( 205 ( Ⓒhave been knowing 3 were knowing 2004 Please call me if something (3 Ⓒhappening 3 happens to His uncle ( Ⓒhas died Ⓒ It has five years Ⓒ It has passed five years 4) since I came to this town. 0 still @has gone 2 2 3 will watch starts 0 My mother ( I Ⓒhad been cooking 3 cooked 007 She 4) when the telephone rang. is having breakfast would have breakfast would have been 3 will have been ) to Tokyo. ) each other since 1976. ten years ago. 2 died 2 3 will start is out ) this TV set. have known were known 2 happen to will happen to 4 2 There are five years It is five years had died has breakfast was having breakfast 008 They asked us to hire a new worker last week, but we haven't decided (3 ℗ already 3 yet 4 any more 09 I said to Janet, "Please lend me the DVD when you ( 2 ) it." would watch 2 have watched 4 will have watched I'm so glad I don't smoke any more! Next month it smoking. supper for two hours when I got home. 2 has been cooking 4 will have cooked 3 1/2 2 would be has been would start 4 is coming (東京電機大) has been died (見学園女子大) (大) (大阪産業大) ) ten years since I quit

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回 9 〈いろいろな図形の面積〉 右の図のような縦4cm 横6cmの長方形ABCD と半径2cmの半円がある。 半円の弧を2等分する点をEとするとき,図のか げのついた部分の面積を求めなさい。 B 2ch 2 PL RE

（2）の図がよくイメージ出来ないのでどのような図になるかお伺いしたいです。 できれば答えの導出もお願い致します。

学習日 練習問題 53 三角形の五心、円の性質 右の図のように、 すべての角が鋭角である三角形ABCがある。 辺AB, BC, CA の中点をそれぞれL, M, N とし, 頂点Aから辺BCに下 ろした垂線と辺BCの交点をHとする。 (1) 点Lは △ABHのアであるから, LA=イである。 よって, <LAH = 4 である。 +00:0 同様にして, ∠NAH=∠エであるから, <LAN = 2 オ また, ∠ACB=∠LMB, ∠ABC = ∠NMC より, ∠LAN = <カである。A よって,<オ=∠カである。 ① 重心 6 LH PYSKA 0437 B である。 イに当てはまる最も適切なものを、次の⑩~⑨のうちから一つずつ選べ。 ⑩ 内心 ③垂心 ⑤ LM 8 NH 2 NHA 0 LHB 6 LHN ⑦ LMN ④心 ④ 傍心 OLHA ⑤ CNH (2) BC=6,CH = 2 とする。 ALMN の外接円 0 が辺AB で接するとき, AB = キ ⑨ BM ⒸAN are go go. Ao に当てはまる最も適切なものを、次の⑩〜⑦のうちから一つずつ選べ。 3 NHC 4. BLH MH ク] である。 N 26 29 (p.94, 95

問3教えてください😭😭😭🙇‍♀️🙇‍♀️

元子 The (1)"rare earth elements are a group of 17 metallic elements that are found in the natural 元子 world. Because these elements are used in all sorts of high-tech devices, they are increasingly 全種類 倍増した in demand. In fact, the use of these metals nearly doubled between the years 2000 and 2010. d Despite the name, the quantity of these elements is not so low. Some recent reports have 主張した claimed that the amount of rare earth elements may be on the same level as that of copper* or Even though the elements exist throughout the world, however, the quantity is not LAUOPUS OS sufficient* for mining* profitably* in each location. Moreover, these elements are usually mixed lead*. with other elements, making it difficult to remove them. This explains why they have been called (8) (A) „‚Â#881‡3 GANEUS $0 01X$&NOS "rare" earth elements. (8) jud (A) Jon Despite an ever-growing demand, few countries are mining for these metals on a large scale. bhup gnis91 sus abnsmab 19 (A) jos ei said ino NO One country, China, now handles more than 90% of all mining for rare earth metals. Other Jadi seu ingim owied 参 in di o ogsmeh, countries have not entered this business in part because of In oro guiauso juodhiw moi because of (2) the environmental problems th ANS) OW IGERS allesimonoss maci pruxs of lola su od son ob enido merla corto prinanvoo can occur. Extracting the metals creates a lot of waste, including radioactive* waste from >tojat DEROXA uranium*, thorium* and other elements located in the mining area. poswad belduob vlison and anomals die ve dost-dgid to edmund oros bas The growing need for rare earth metals may convince some countries to expand their mining. bsol 10 190900 2 von dem som vas a su amals drus ma maldong nista on jonzi blow di metavond zimnelo drusele viirusno leuns afte Running out of rare earth metals is not the concern, however. Rather, the question is whether 2 lo word of mine anomals dre His ch 21810 i asıl yainuas vino odo at smidƆ> vob dost-deid ni bozu.ad no vod! they can be obtained without too high of an economic or environmental cost. ololo alam russ

空所に入れるの選択肢する問題です 解答に自信がないので できたら解説もお願いします

問2 I never hear that song without ( 7 remember Tremembering Jah Eroti 問3 問4 S It was a stupid thing to say, I wish I ( 7 didn't say How much did it cost you to have this camera ( dit m ア fix shouldn't say SANIN A ア few fixed 問5 One more or less doesn't make ( ) my high school days. little forget ) it. hadn't said to fix ) difference. many I forgetting I wouldn't have said )? * In su les I fixing k DET onive whysk Age of mu sesdes much 20 Abe an byde

bにおいて、加水分解した時、どのように分かれてどのような分子式になるのかの判断方法を教えて下さい！

⑤ 分子式 C2H4O2で表 2 次の記述 abに当てはまるエステルA・Bを,下の①~ ⑦ のうちから, 一つずつ選べ。 中の 分子式 C6H12O2 で表されるエステルAを加水分解したところ, 1価のカルボン酸と1価 のアルコールが得られた。 生じたアルコールを酸化するとアセトンが得られた。 2 エステル B を加水分解したところ, 2価のカルボン酸と1価のアルコールが得られた。 3 ① CH3-C-O-CH2-CH-CH 3 O ③ CH3-CH2-C-O-CH2-CH2-CH3 CH 3 || O II 0 ⑤ CH3-C-O-CH2-CH2-O-C-CH3 CH₂-CH-C-0-CH-CH₂ II OH O C-OH II 0 II 0 2 CH₂-C-0-CH-CH₂-CH, CH 3 0 4 CH-CH-C-0-CH-CH II 0 CH₂ ⑥ CH3-CH2-O-C-CH2-CH2-C-O-CH2-CH 3 0

aの方の解説で下線を引いた部分がなぜそう分かるのか教えて下さい‼︎

問2 ⑤ 分子式 C2H4O2 で表されるエスラ 次の記述 a b に当てはまるエステル ABを,下の①~⑦のうちから, 一つずつ選べ。 分子式 C6H12O2 で表されるエステルAを加水分解したところ, 1価のカルボン酸と1個) 2 のアルコールが得られた。 生じたアルコールを酸化するとアセトンが得られた。 エステル B を加水分解したところ, 2価のカルボン酸と1価のアルコールが得られた。 b 3 ① CH3-C-O-CH2-CH-CH3 O CH 3 ③ CH3-CH2-C-O-CH2-CH2-CH3 11 0 5 CH-C-0-CH-CH-0-C-CH, H-g CH3-CH-C-0-CH-CH3 OH O C-OH || O || 0 2 CH-C-0-CH-CH-CH3 CH3 || 0 ④ CH3-CH2-C-O-CH-CH3 II 0 CH 3 CH-CH ⑥ CH3-CH2-O-C-CH2-CH2-C-O-CH 2-CH3 || O II O

別解の方で解きたいのですが私の解いてる別解の方法の解説が途中までしか書いていなくて、答えが合いません(´°̥̥̥̥̥̥̥̥ω°̥̥̥̥̥̥̥̥｀)どこで間違っているのか教えて欲しいです！！

(5) 次のように定められた数列{C} がある。 C1 = 0, Cn+1=3Cn+2n+1. 3C+2n+1.n (n=1,2,3, ...) 数列{cn}の一般項を求めよ。 = ヌ Cn= n ノ n+1

この問題教えてください🙏何故そうなるのかも教えてくださると助かります！！

The area known as the Outer Banks has a distinctive line of lighthouses ( coastline. 2 to illuminate illuminates (3) illuminated sou pluco in hirta edT ) its dangerous 4 having illuminated [ 4 ] ( ) the rainforests of West and Central Africa, the African golden cat is threatened by deforestation and hunters. Inhabit 2 Inhabited 3 Inhabiting 4 To inhabit [ 5 ] Deserts, ( ) already occupy approximately a fourth of the Earth's land surface, have been increasing at an alarming pace in recent decades. DessalT 1 which 2 what where 4 that [6] The growing concerns over global warming along with depleting oil and gas reserves have made ( ) necessary to seek energy from renewable resources. it Datashua 2 that them 4 those (

文法が分からないので、解説も含めて解答を教えてください！

The area known as the Outer Banks has a distinctive line of lighthouses ( coastline. 2 to illuminate illuminates (3) illuminated sou pluco in hirta edT ) its dangerous 4 having illuminated [ 4 ] ( ) the rainforests of West and Central Africa, the African golden cat is threatened by deforestation and hunters. Inhabit 2 Inhabited 3 Inhabiting 4 To inhabit [ 5 ] Deserts, ( ) already occupy approximately a fourth of the Earth's land surface, have been increasing at an alarming pace in recent decades. DessalT 1 which 2 what where 4 that [6] The growing concerns over global warming along with depleting oil and gas reserves have made ( ) necessary to seek energy from renewable resources. it Datashua 2 that them 4 those (