A,Dでないことは分かるのですが、Bがダメな理由があまり分かりません。

☐ 14. Increased sales of new cars and improved tourism statistics are is promising signs of a ------- economy.guidare etique (A) strength won fi tud asey air estuqmoo 000,081 tasel 000,001 neve llee lliw verl! (B) strengthen (C) strengthening (D) strengths Isitini (A) exilaltini (8) alsitini (0)

(1)(2)ともにまったく分からないので教えてください！

[大] 大] 重要 例題 9 二項定理の利用 (1) 101 ' の下位5桁を求めよ。 (2)2 00で割った余りを求めよ。 CHART & THINKING のののの 23 基本 (1),(2) ともに, まともに計算するのは大変。 (1) は,次のように変形して、 二項定理を利用する。 1011= (100+1)100= (1+102) 100 展開した後, 各項に含まれる 10 に着目し, 下位5桁に関係する箇所のみを考える。 (2)も二項定理を利用するが,どのようにすればよいだろうか? →900=302 であることに着目し,2930-1 と変形して考えよう。 解答 (1) 1011=(100+1)100= (1+102) 100 =1+100C1・102+100C2・10+100C3・10°+100C4・10°++10200 =1+100C1・102+100C2・10+10%(100Cs+100C4 ・ 102 +... +10194) ここで, a=100C3 +100C4・102 +…+10194 とおくとaは自然数で 101100 = 1+10000 + 49500000 +10°α =10001+49500000 +10°a =10001+105(495+10a) 10 (495+10a) の下位5桁はすべて 0 である。 よって, 101100 の下位 5桁は 10001 (2) 2945(30-1)45=(-1+30)45 =(-1)^5+45Ci (−1)44・30+45C2(-1)43・302+45C3(-1)42・303 ■■ 1章 1 3次式の展開と因数分解,二項定理 分散式は、 +…+45C44(-1)・304+3045 第3項以降の項はすべて 302=900で割り切れる。 また,(-1)45=-1, -1) =1であるから -1+45・1・30=1349=900・1 +449 よって, 2945 を900で割った余りは 449 大←第1項と第2項の和は 900 より大きい。 計算への応用 INFORMATION 上と同じ考え方で, 複雑な計算を暗算で行うことができる。 例えば,9992 は 9992=(1000-1)=1000000-2000+1=998001, 4989×5011 は 4989×5011=(5000-11)×(5000+11)=50002-11=25000000121=24999879 と計算 できる。

解き方を教えてください！

応用 5 (1) 右の図のように,CA=5, cos <BAC=1/23の△ABC があり, △ABCの面積は10√3 である。また, BACの二等分線と 辺BCの交点をDとする。 (i) ∠BACの大きさを求めよ。 (ii) AB の長さを求めよ。 (iii) AD の長さを求めよ。 B C DOCS A

数Ⅰの問題です。写真の(1).(2).(3)について教えてください！🙇🏻‍♀️

△ABCにおいて,次の等式が成り立つとき,この三角形はどのような形をしているか。 (1) bsin B = csin C (2) (sin A + sin B + sin C) (b+c-a)=2csin B (3) acos A + bcos B=ccosC

英検準一級の要約問題です。 添削していただけないでしょうか？🙇‍♀️

英検公式サンプル問題 ⚫ Instructions: Read the article below and summarize it in your own words as far as possible in English. ⚫ Suggested length: 60-70 words Write your summary in the space provided on your answer sheet. Any writing outside the space will not be graded. From the 1980s to the early 2000s, many national museums in Britain were charging their visitors entrance fees. The newly elected government, however, was supportive of the arts. It introduced a landmark policy to provide financial aid to museums so that they would drop their entrance fees. As a result, entrance to many national museums, including the Natural History Museum, became free of charge. Supporters of the policy said that as it would widen access to national museums, it would have significant benefits. People, regardless of their education or income, would have the opportunity to experience the large collections of artworks in museums and learn about the country's cultural history. Although surveys indicated that visitors to national museums that became free increased by an average of 70 percent after the policy's introduction, critics claimed the policy was not completely successful. This increase, they say, mostly consisted of the same people visiting museums many times. Additionally, some independent museums with entrance fees said the policy negatively affected them. Their visitor numbers decreased because people were visiting national museums to avoid paying fees, causing the independent museums to struggle financially.

英検準一級対策の要約問題です‼︎ 添削していただきたいです✒️よろしくお願いします🙇

Brazil implemented cable car system so that they acsess to the city of Rio de Janeiro from the all areas before Olympics. Because of it, people could see see fighting with better acsess. And it made people visit there comfortably. However, some people oblidged to leave there. due to construction of it. Futhermore, the system couldn't do well and finished.

題意からn番目のバスで到着した患者で最小の整理券を貰った患者の待ち時間を求める問題で解答では写真の様に4(n^2-n/2+1)〜となっていますが、（）の＋1は自分の診察時間も含めてしまうので要らないと思ったのですがどうでしょうか

[1] ある病院では午前9時からの診察に対して, 病院に午前8時に到着する送迎バ スから午前9時30分に到着するものまで、合わせて10便の送迎バスを10分間隔 で運行し,早く来た患者から順に1番、2番、3番の整理券を渡し,整理券の 番号の順に診察することとしている。診察は午前9時ちょうどに始め,1人につき 4分で終了し,終了すると直ちに次の患者の診察が始まるとする。 ある日, 来院し た患者はすべて送迎バスを利用し, k番目の送迎バスには人の患者が乗っていた (k=1,2, ..., 10)。 1.0 60.6010. 55.0 Fra 便名 到着時刻 患者数 整理券番号 180円 221.21.10 1 8:00 1人 1 exes. s. 68 2 8:10 2人 2,3 $235 ESAS, AQ ress. rass. 3.0 0825. 1.0 EETE, 1801 1803 180E 8:20 3人 4,5,6 es. 186. 18.0 BIE.IE. 2.0 ... : 0288. 10188.00 10 9:30 10人 21CD Tees 08 erep, 2081 erse. COSE. EDGE II S.I 0. SCOD SSSA (1) この日発行された整理券で最も番号の大きいものはアイ 番であり,この整 理券を受け取った患者は9時30分に到着してから診察が始まるまで ウエオ 分待つこととなる。 まで 186 BEA (数学II・数学B 第4問は次ページに続く。) 028 DEBA 1881 DEBA 8087 each se 1.4=216

高校受験を控える弟のテストです。回答がなく困っています。どなたか回答してくれませんか？

BO (2)次は,かえで町で開催されるイベントのお知らせです。 Kaede Summer Festival We will have Kaede Summer Festival in Kaede Park in August. There will be more than 60 shops, and you can enjoy many events on stage. In the evening, you will see beautiful fireworks. Come and enjoy the summer! Schedule <Day 1> Saturday, August 10 From 9 a.m. to 9 p.m. 10:00 Yosakoi Dance 1:30 Music Performance by 6:00 Mr. William Teller Bon-Odori 7:00 Fireworks Show Information about Events Mr. William Teller will join our festival. He is a famous singer around the world. When he was younger, he lived in Kaede Town for one year. He decided to come back for Kaede Summer Festival this year. Come and enjoy his great music! <Day 2> Sunday, August 11 From 9 a.m. to 8 p.m. 000.00 00002 11:00 Dance Performance by children 3:00 Yosakoi Dance 6:00 Bon-Odori 7:00 Fireworks Show Kaede Yosakoi dance team will show their performance. They won a Yosakoi contest in Hokkaido last year. Their performance will be exciting. They have made their dance easy for the people of Kaede Town. You can dance with them! On the second day, children of the dance club at Kaede Elementary School will perform their dance. They practiced dancing hard for this festival. Enjoy their cool dance! will sď You can see the fireworks show from anywhere in the park. * Children under 13 years old can't enjoy the festival after 6 p.m. without a parent. (E) schedule anywhere どこでも W in evil won bis vti alueji ni rood asw.exp VT to adband pig box by var Joods moilimbi amox fox ral0Y+ rady (nam you of ved Imobre VIO 2008 in noble nibit won a toy tili da ni vil o bha alging so I -7-

こんばんは英作文の添削をお願いします！ たくさんの人の意見が欲しいです！ 1、2枚目が下書きでこの文章と点数です 最初で満点をとりたいのでchat GPTを交えて文を書き直しました。不自然な文があったら教えてください！ 明日の午後提出です！

I'm going to talk about an experience that changed my life Was when I studied studying abroad in Niseko, Hokkaido. I stayed for a total of 2 months last summer I made a lot of friends. and this summer. Speaking in both Japanese and English deepened our bond. Even after studying abroad we l are still in touch. We are going to have a reunion in Tokyo on Christmas Actually, I hadn't been good at English before I studied abroad. A friend of mine said "Don't be afraid ". Then to me •get rid of my weakness in English. I had a conversation with my I was able to native teacher in English through the activitities. In these activities, had a We did BBQ, cooked, and went sightseeing. It was d again, I would like to go skiing. lot of fun. If I could study abroad in Niseko to Niseko. You can enjoy Niseko's lifestyle Please yo m

②、③に入る語句を選びなさいという問題で、②could ③wouldだったのですが、なぜ入るか分からないので教えて欲しいです。

62 The Olympics have grown so much that nearly 代表する 19119 98le oth 20 represented. Moreover, events in the Olympics have changed over the years, and will probably continue to change with time. ①It is essential the Olympics be allowed to 適応する 傾 ちがしするように grow and adapt to cultural trends so that they can stay fresh and exciting for new generations of viewers and participants. If you ( choose a new sport to watch a the Olympics, which one ( 3 ) it be? (that \+s+ (([[(S) Tot ih (259 words (that)+tv(原形)絶対