数Bです ◽︎から◽︎の途中式がよくわかりません

[7] 次の数列の第k項anと初項から第"頂までの和Sを求めよ。 (1) 2, 2+5, 2+5+8, 2+5+8+11, Ak=a=2, d = 3 ar = ± k{2.2+1K-1).33 +k (3k+1) R ****** 2k (3k + 1) = 12,3k+ k + {3. in ²n+²)(n+1) + + n(n+1 13 = = = = n(n+1) { 2n +1 +1} & n(n+1)(2n+2) = + n(n+1) 2(n+1) ==n(n+1) ² (2) 3, 3+9, 3+9+27, 3+9+27+81,

homeとhauseってどちらも家ですが、どうやって使い分ければいいですか？

clearnoteの休憩室のURLって分かりますか？(ありますか？) アプリなんですが… スマホでは無いです！iPadです！(タブレット) 分かる方、いませんか？

教えてください お願いします🙇‍♀️

17 Traveling in Taiwan from Tokyo. It is about the same size as Kyushu. Taiwan is close to Japan. It only takes about four hours to get there by plane One popular tourist spot is Taipei 101. It is a 508-meter-tall building in the city of Taipei. It is the tallest building in Taiwan and it looks like a bamboo tree. If you go up the building, you can have a great view of Taipei. At the northern end of Taiwan, there is a small area (call) It is a lovely area with stone steps and red lanterns. There are many old buildings, small shops and restaurants. Jiufen. 2 Lanterns give a wa warm light in the evening. Don't miss the food in Taiwan. You can find food stalls all over Taiwan, particularly at night markets. They sell all kinds of local food: noodles, shaved ice and milk tea with tapioca. The local food is delicious and cheap. There are so many things (see) and do in Taiwan. I'm sure you will like it. A 次の文が下線部とほぼ同じ意味になるように,( )内に適切な語を書きなさい。 ) ( It is taller ( ) ( 3 B ② 3の()内の動詞を適切な形にしなさい。 ただし, 1語とは限らない。 (3 Notes C 本文の内容にあわないものを1つ選び,記号を書きなさい。 7 It takes about four hours from Tokyo to Taiwan by plane. ✓ Taiwan is as large as Kyushu. In Jiufen, we can see warm lights of lanterns all day long. I We can eat the local food at the night market at low price. ジャーマ Taiwan northern 北の food stall spot tourist きゅうふん Jiufen JG(L) night market iti ) building in Taiwan. SOUND 10 Taipei (%) bamboo lantern ちょうちん tapioca タピオカ stone step # shaved ice かき氷 -tit 17

4と5です。私は2枚目のように考えたのですが、違いました。どうして答えのようになるのか分かりません。教えて頂きたいです🙇‍♀️

6 [組成式] 次の名称を化学式に直せ。 (1) 塩化カルシウム (3) フッ化マグネシウム 水酸化ナトリウム (7) 塩化銅(ⅡI) 水酸化鉄(Ⅲ) (2) 酸化リチウム X4 硝酸ナトリウム (16) 硫酸カリウム 8 酸化マンガン (II) 00 炭酸アンモニウム

このお話はまとめるとどういう話なのでしょうか？

Mama's Bank Account (1) I am Katrin. When I was a child, all my family lived in a small house in San Francisco. My family members were Mama, Papa, my elder brother Nels, my younger sisters Christine and Dagmar, and I. We were immigrants from Norway. I remember that every Saturday night Papa brought home a little envelope with his pay in it. Mama would sit down by the kitchen table with a serious look. She was counting it out. There would be several piles of coins on the table. "These are the rent," Mama would say, and set aside a big pile of coins. "For the grocer." She set aside another pile of coins. "For Katrin's shoes," and Mama counted out the coins. "I'll need a notebook this week." Nels said, and Mama put aside a ten-cent coin. At last, Papa would ask, "Is that all?" Mama would nod and say, "That's good. We don't have to go to the bank to withdraw money."

このwhichがbyの目的語らしいのですが、つまり、most of the higher animals survive by 【the　fundamental cooperative act】（【】はwhich）という解釈でいいのですか？

1 7 「危ない!」 When someone sees a car coming, he shouts at you, Hearing the shout, you jump just in time to avoid being 140 WOR "Look run ove by an automobile. You owe your escape to the fundamenta cooperative act by which most of the higher animals survive, that sefel så of 5 is, communication by means of noises. You didn't see the coming, but someone else caught sight of it, and he made noise to communicate his alarm to you. 2 In other words, although your nervous system took no note of the danger, you were not injured because another nervous system 当 10 took note of it. For the time being, you took advantage of someone else's nervous system in addition to your own. min! 利用 3 Indeed, we are dependent on the nervous systems of others to make up for what we have missed by ourselves without paying た 10 14 attention. 「危な 跳びの れた is th あな あな

教えていただきたいです 答えはx＝−6、−4、2、4です

第11講 図形の性質で考える関数 ②2 問題11-2 右の図において, 曲線は関数y=x², 直線は関数y=-2x+16のグ。 NOTE ラフです。 曲線と直線の交点をA,Bとします。 曲線上に点Qをとり, △QABの面積が△OABの面積の半分になる! しょうにします。 このとき, 点Qのx座標をすべて求めなさい。 ORA 5 109 B X

「幕末江戸市中騒動図」について、レポートを書きたいのですが、何が描かれているか当時の情勢も教えて頂きたいです🙇‍♀️🙏

ログアウトの仕方 教えてください .'.'