この問題のキルヒホッフの法則を使った方の方法が上手くできません。どなたか解説お願いします。

E1 ① E2 Es 図 キルヒホッフの法則 ⑨図に示す回路において, キルヒホッフの法則および重ねの理を用い て電流I を求めよ。 I 4 [Ω] 4 [Ω] 8 [Ω] 10(V)- 4 [Ω] -7〔V〕 8 [Ω] 図 キルヒホッフの法則 ⑩ 前項の図に示す回路において, 重ねの理を用いて, 各岐路電流I1, I2 およびI を求めよ。

やり方教えて欲しいです解説お願いします！🙇🏻 数2です！

□ 118a>b>cd のとき,次の不等式を証明せよ。 (1) * ab+bc >b+ca (2) ac+bd> ad + bc □ 119 次の不等式を証明せよ。また,等号が成り立つのはどのようなとき か。 (1)* 9a² +462 ≧ 12ab (2)(x+1)(y2 + 1) ≧ (xy+1)2 E

⑴の問題で、検定交雑により生じた子だと各遺伝子が連鎖しているか判断できる理由がわかりません。検定交雑はなぜするのですか？

基本例題 4 遺伝子の独立と連鎖 リード 解説動画 ある植物がもつ3対の対立遺伝子 (A とa, B と b, C とc) について, 顕性ホモ接合の個体と潜性ホモ接合の個体を交配して, F, (雑種第1代) をつくっ た。 この F を検定交雑したところ, 表のような結果が得られた。 表現型 [ABC] [ABc] 分離比 7 2 [AbC] [Abc] [aBC] [aBc] [abC] [abc] 2 7 7 2 2 7 (1) 連鎖している遺伝子の組み合わせとして, 最も適当なものを次の(ア)~(ケ)のうち から1つ選べ。 AとBのみ (ア) A と B のみ (エ) α とものみ AABB C C (イ)AとCのみ (ウ)BとCのみ の親から生じ (オ) a とcのみ (カ b c のみ 第1章 生物の進化 2 ② a (キ) AとC, a とc (ク) AとB, aとb (ケ) B と C, b とc (2) 連鎖している遺伝子間の組換え価を, 小数第1位を四捨五入して答えよ。 指針 (1) F, は, 顕性ホモ接合の個体(AABBCC) を潜性ホモ接合の個体(aabbcc) と交配して 生じた子, つまり, 検定交雑により生じた子なので, F, の表現型の分離比から, 各遺伝子が連鎖しているかどうかを判断できる。 [AB]: [Ab]: [aB]: [ab]=9:9:9:9=1:1:1:1→AとB(aとb)は独立 [AC]: [Ac]: [aC]: [ac]=9:9:9:9=1:1:1:1 →AとC(a とc)は独立 [BC] [Bc] [bC] [bc] = 14:4:4:14 = 7:2:2:7B と C(b と c) は連鎖 組換えを起こした配偶子の数 (2) 組換え価(%) 全配偶子の数 = 22.22...(%) 解答 (1) ケ (2) 22% 4 +4 x 100 = x 100 14 + 4 + 4 + 14

画像の1枚目の問題を解いたのですが、途中でわからなくなったので解き方を教えていただきたいです！ ←問題　　　　　　　答え　　　　　　　解き途中→

Practice 43 n 2 (1) a2, 3, as を求めよ。 k=1 数列{an} は, a1= 1/2, an=(n=1, 2, 3.……)を満たしている。 (2) an+1 を anとnで表せ。 (3)一般項 αn を推定し, それが正しいことを数学的帰納法を用いて証明せよ。 [08 愛媛大]

中3理科のイオンの問題です！どうしたらこうなるのか全く理解できないので分かる方いたら教えてもらえると嬉しいです🙏

ナトリウム原子がナトリウムイオンにな るようすを、イオンを表す化学式で表し なさい。 Na → Na++ e e¯ 銅原子が銅イオンになるようすを、イオ ンを表す化学式で表しなさい。 Cu→ Cu2++ 2e¯ 塩素原子が塩化物イオンになるようす を、イオンを表す化学式で表しなさい。 塩化ナトリウム (食塩) NaCl の電離を 表す式。 Cl + e → CI NaCl→ Na* + Cl 塩化銅 CuCl2の電離を表す式。 CuCl→ Cu2+ + 2Cl

marry の形がわかりません

12 1 cause (3) What did he ( 1 ask (4) The girl closely ( ①resembles (5) Could you ( I talk ) my dead mother. 2 resembles of ) me which one is his? 2 speak TRIAL 2 1》各文の( )に入る最も適切な語句を選び、番号を答えなさい。 ④forgive (1) We don't ( ) the students to have visitors in the dorm rooms after ten o'clock. 2 prevent allow (2) John's vast knowledge didn't ( 3 let ) him solve the problem. 2 save ) to you? Anything interesting? 2 say ④help 3 allow mudis blom ud ④tell 3 talk lew to easly s dal CEME (成蹊) (関西学院)) (学習院大) (2) You c (3) The feve 2 各文には (1) The d tree. 3 resembles to ④resembles with (4) I [101] (高千穂新大) tell (5) Ma 3 say (名古屋学院大) (6) We ( ) New York "the Big Apple." ④ call (6) E 3 speak 1 introduce 2 say [開催要 (金沢工業) 3 (7) Peter doesn't get ( 1 along ) well with his father. 2 forward 3 much ⑥to (東大) Hi I laid (城西大) 4 of lliw 5 sowi (8) After some hesitation, he () the book on the desk. 19mm) Em 2 lied dary lay mid (tog slote lain (9) We ( ) the matter for hours but came to no conclusion. 001\1800 1 spoke (10) He ( ①informed 2 discussed were ③3 discussed about 4 said ) his teacher of his success in the examination. bise boy ind 3 noticed molni) 'nb4 suggested gnise 2 reported (11) The poor old man was robbed (d) his money. for me to absood from? \bo al two o'c (中央大) 日本 (1) ted bis(**) 4 of (2 (南山大) married with 1 off (12) In the spring of 1985, Frank (109) Jennifer in a large church ceremony.b I married 2 married to hely 3 got married eloqa (13) A: Haven't you finished that report yet? B: ( badguel in bodigusi) siges ) me a few more minutes and I'll get it done. 2 Share 3 Take \ is srt of nateil of (センター試験) Wait 1 Give ☞(14) A college education will () you to get a broader view of the world. ad ei w(t>- 1 let (15) This computer cost ( 2 enable 3 make 4 take (京都産業大) ③ of me 4 for me her speech. (大阪産業大) A+ 3 with ④against ) my whole salary last month. 1 me 2 to me (16) Astonishment almost deprived the girl ( 2 at 1 of (17) The welfare office provides ①food with people in need 3 people in need with food (2) vast Hints! (14) broader 2 food people in need 4 people in need for food (8) hesitation (9) conclusion (16) astonishment (17) welfare ( 秋田県立大)

間違っている所を選ぶ問題です 分からないので教えてください🙇‍♂️

2 Choose the underlined part that is INCORRECT. (1) art escor (1) Every alive creature in the sea ① 2. (2) I lost my wallet during I ②. ③ is affected by marine pollution. ④ was jogging through the park. (3) When I started teaching, my grandfather made me promise ① about peace with my students. ② 17 E Win fael (西南学院大) (近畿大) e that I will share his lesson Prague odi ③ quor bloo (SHAD) (4) You had better set the alarm clock for fear you should get up lately. ② ③ (玉川大) (5) Studies suggest that wolves and dogs split into different species around 100,000 years ① before. 2. (学習院大) 5 m otni ST DOYA (E) (6) I was spoken by a foreigner in English when I was waiting for a train at the station. ① ② ④ ( 広島修道大 ) 4 (7) Our hunger for new places and new ways have been with us for ages, almost like a mysterious disease. won and lemeziz m'l oli lololls (1)

間違っているところがあったら教えていただきたいです🙇‍♂️

4 1 Choose the best answer to fill in the blanks. (1) (1) You should ( ) or he might get lung cancer. ①get him stopped smoking 3 have him stopped smoking 2 get him to stop smoking have him to stop smoking /13 (京都女子大 ) ①great (2) The more money he had, the (y 2 greater ) care he had to take of security. 3 more greater (玉川大) most greatest (3) When I was in high school, I ( I have belonged belonged ) to the badminton club. 3 was belonging belong (南山大 ) 1) it. (4) I prefer playing baseball ( I to watching 2 to watch than (崇城大改) 3 for watching 4 watch (5) He just left home a minute ago, so he ( 1 cannot go 3 must be gone (6) "That's not your car." "My car ( 1 is being ) repaired, so I borrowed my brother's car." ③3 needs ) far. 2 cannot have gone (近畿大) ④must go (南山大 ) ( 大阪学院大 ) THIO 4 is under 2 wants (7) A knowledge of science is ( ) great use to everyone. 1 at 2 for 3 of 4 with (8) I wish ( ①having 3 I had 4 I will have (共立女子大) enough money to buy the computer game. 2 having had (9) His name is known ( ) everybody in this group. 1 as 2 with 3 for 4 to (京都文教大) ). so does Bill 4 Bill does so (駒澤大) (10) Bessie likes jazz dance very much, and ( 2 so Bill does ) help me if you don't have time. I can do the job myself. 1 Bill does (11) You ( 1 aren't able to 2 don't have to 3 aren't going to 4 should to 各種 ( 神奈川工科大) (12) India has the second ( ) population in the world. 1 large 2 largest 3 many ④numerous (千葉工業大) (13) Jack and Bill will meet me on Wednesday and Thursday ( ). ①respectably 2 respectively 3 irrespectively likely (松山大

サイコロをn回投げるとき、出る目の最大値が3となる確率の求め方を、教えてください 複数別解も募集してます

10,(3)xについて解くと、x>-2/aとなり、aはa＜0を満たす定数だからマイナスをかけてx＜2/xだと思ったのですが、答えはx＜-2/aでした。どうしてこの答えになりますか。

10次の不等式を解け 4 (3)ax+270caはacoを満たす定数) ax+270 ax >-2 2 x> 2 x< a a