13と14の問題を教えて頂きたいです

13 二項定理を用いて, 次のことを証明せよ。 x>0 のとき (1+x)">1+nx+ n(n-1), 2 ■■ B Clear x2 (nは3以上の自然数) 14 次の□に入る数を,二項定理を用いて求めよ。 101 Co+101 C2+101C4 +... + 101 C98+ 101C100 =20 13,14

この問題の解説お願いしたいです🙇

LI る力をのばそう! 交点と三角形の面積 ④ ③ 右の図で y my=2% 4調 e 図形の性質の調べ方 直線 l は関数 5章 三角形・四角形 6章 確率 1 y=3x+5のグ ラフ, 直線は 関数 y=2x のグラフ, 直線nは関数 IC y=1/2xのグラフである。直線lと直 線は点Aで,直線lと直線nは点B でそれぞれ交わっている。 △OAB の面 積を求めなさい。 ただし, 座標の1目も りを1cm とする。 (千葉改) 150m² 7章 データの分布 2元1次方程式の という。p.58 2年学 61

合ってるか教えてください🙇‍♀️

分 ( 10 比較、疑問文、否定ほか ② 次の英文の( )に入る最も適当な語 (旬) を1つずつ選び、番号で答えなさい。 came from his 20 flights were canceled due to the heavy storm. □27 |271 ( 2 As many as 1 As long as ④As soon as STELO AN (大映中 3 As much as y to ten bluoda noy veidos of ( ■272 tignol\on\wodel) considering adding Last year we doubled the number of staff, and we are to sit down togeth 基本 more staff this year. 3 by 4 even 2 very □2 関西学 ☐ 1 plus My grandmother always tells me that the smaller the garden, () to look after 1 the easier it is 273 基本 ③3 it is the easier □274 worla lliw the easier is it notesbianco) Int ④ is it the easier <東海) many companies surveyed in the study sa He is ( ) far the tallest of us all.marketing tool. (大工金) 1 how 2 so too by gas (nedw\eritedt \ Isoiled be) There's not much news in today's paper, ( )? 1275 1 isn't it 3 is there 2 are there ed/whom abroad. 4 aren't there □276 When you finish reading the book, please tell me ( ) you think about it. 1 when 2 what 3 how careles which <女 □277 How come ( ) bring your wife? I did you 2 did you not 4 you didn't □278 3 didn't you ( ) go to the doctor if you are sick? Why not to 3 Should you to LO 2 Why don't you (4) If I were you, (-) A¹ & at A

この英文の文法を教えて欲しいです。 (関係代名詞、不定詞など) 英語が苦手なのでどのような使い方をするのかなど教えてもらえるとありがたいです。

onference ánf(a)rans] im [éim] articipant artisǝpǝnt] sappointment isapintment] opose [prǝpouz] allenging elindsin] me to do mto do on one's appointment ... at all stantial stanf(ǝ)!] road [réilroud] instream instri:m] t is how ... e hope that... an impact on 3 In How did they come to publish their own paper? 2002, there was a study conference held by CHETNA an NGO that aims to help the children in slums. Among the participants, there were some children from a slum in South Delhi. They were shocked to learn that adults had no idea about what really goes on in a slum! To their disappointment, the children also learned that the media did not cover the issue at all! So they decided to join a project proposed by CHETNA. It was a G1 challenging plan to start a newspaper to let people know about the terrible conditions of kids living in the slums. G1 That is how Balaknama started. The children chose this name in the hope that their paper would serve as "the voice of children." In fact, their articles have sometimes had a substantial impact on society. In 15 2015, a shocking article appeared in Balaknama. It was about slum kids forced by police officers to remove bodies after railroad accidents. The mainstream media reported on the article and the government finally acted and stopped the police. 20 nsion Check id the children learn at a study conference held by CHETNA? roject did CHETNA propose? d the children name the newspaper Balaknama?

この英文の文法やtheyやitが何を表しているかなど詳しく教えて欲しいです。

onference ánf(a)rans] im [éim] articipant artisǝpǝnt] sappointment isapintment] opose [prǝpouz] allenging elindsin] me to do mto do on one's appointment ... at all stantial stanf(ǝ)!] road [réilroud] instream instri:m] t is how ... e hope that... an impact on 3 In How did they come to publish their own paper? 2002, there was a study conference held by CHETNA an NGO that aims to help the children in slums. Among the participants, there were some children from a slum in South Delhi. They were shocked to learn that adults had no idea about what really goes on in a slum! To their disappointment, the children also learned that the media did not cover the issue at all! So they decided to join a project proposed by CHETNA. It was a G1 challenging plan to start a newspaper to let people know about the terrible conditions of kids living in the slums. G1 That is how Balaknama started. The children chose this name in the hope that their paper would serve as "the voice of children." In fact, their articles have sometimes had a substantial impact on society. In 15 2015, a shocking article appeared in Balaknama. It was about slum kids forced by police officers to remove bodies after railroad accidents. The mainstream media reported on the article and the government finally acted and stopped the police. 20 nsion Check id the children learn at a study conference held by CHETNA? roject did CHETNA propose? d the children name the newspaper Balaknama?

解説には載っていなかったのですが、 moreは不可算名詞の代名詞として用いれるのか、 （加算、不可算関係なく）全ての名刺の代わりとして用いれるのかどちらなのでしょうか？？

phupes (0) 25. If the copy machine is out of paper, add ------- from the storage cupboard located beside the door to the kitchen. (A) other to fuo ed bluow erie terit (B) more to wen edi to noisool er) tuods ebsm asw (C) few (D) one botuess (A) beiniog (9) betealbni (0)

12の(1)と(2)と、15の(3)のイ□と17が分からないので教えていただけるとありがたいです😭明日テストです😭

EM AT CE EF : FG=| である。 12 図のように, 平行四辺形ABCD において 辺BCを2:1の比に分ける点を P, 辺 CD を 2:1の比に分ける点を Q, AP と BQ との 交点をR とする。 次の比をもっとも簡単な 整数比で答えなさい。 (1) BR: RQ (2) (△ABRの面積): (△CQR の面積) E B C F 点きです G ソ A D (1) R (2) (3) B P C 4:3 13 相似な2つの立体 A, B があり、 その表面積の比は16:9である。 の 求めなさい。 16

画像の問題の解き方を教えていただきたいです。 答えは(1)A（－2,2）B（4,8）（2）y＝x+4 （3）12

1 右の図のように,関数 x2の 2 グラフ上に, 2点A, B があります。 A,Bのx座標が, それぞれ,-2, 4 で あるとき, 次の問いに答えなさい。 (1) 2点A,Bの座標を求めなさい。 (2)2点A,Bを通る直線の式を求めなさい。 (3) △OAB の面積を求めなさい。 A 2 4 4 O 学びをいかそう 6 グラフの交点の座標 学ば 39~40 y= B 8

日本の学校の9月入学の是非について100字程度で述べなさい という英作の問題です 波線を引いたところは表現が不安な箇所です。訂正あればお願いします。字数が足りていないので付け足せるところも教えて欲しいです 見にくくてすみません🙇

4. 将来 さんせい 日本人留学やすい 日本人留学しやすい →高い英語 海外から受け入れやすい能力みにつく →日本の経済 発展かつやく 海外は9月から 海外からも L → 9日入学 日本の犬 優秀な契村増→経ざい 日本の大学レベルアップ 日本人学べる I believe that Japanise school introduce Tapahushould allowse school allow to start September. School in This shift would make for Japanese students to study abload and for students from abrad to Come to Japan. In other country, the, because In other country, most school start in September Japanese school took Therefore more students from abroad. Japanese students would learn English skill to high level and these who may play an important role in Japanese economy and development in the future would be increasing and work for the reason mentioned above. I am Convinced that Japan should allow school to start in September 35 Thi n メジア 問題番号 96

どうして4t＋2が0以上とわかるのですか？

0 を原点とする座標平面上に3点A(4, 2), B(1, -3), C(7, -7) がある.また, 実数に対して,点Pを で定める. OP = OA + tOB (1) OP OC が平行となるときのtの値を求めよ. (2)OP OC のなす角がエ となるときのtの値を求めよ.