(2)の解き方を教えて欲しいです。シャーペンで書いている数字は答えです。

サイコロを繰り返し投げて、出た目に応じてzy 平面上をスタートの原点からゴールの直線æ= (kは自然数)に向かって次の規則に従って移動する。 (i) 目が1ならばy軸方向に+1, 目が6ならばy軸方向に-1, 目が2から5ならば軸方 向に+1 移動する。 (ii)y座標が+2または-2に到達した場合はコースアウトとして終了する。 このとき、次の問に答えよ。 不会(1) 124 (1) k=2のとき, サイコロをちょうど2回投げてゴールに到達する確率は 1441 であり, 13 9 14 同じくコ 同じくコースアウトする確率は 15:16 である。 また, サイコロをちょうど3回投げて 18 2 178 20 ゴールに到達する確率は 18:19 であり, 同じくコースアウトする確率は A 21:22 食 である。 27 **: 27 LUNGON HOR 投げでコースアウトし (2)k=4のとき, サイコロを3回投げてコースアウトしなかった場合, 4回目でゴールに到達 32 23:24 する条件付き確率は である。 25:26:27 (

この問題で、O,P,Rを通る円の半径を求めるときに三角形OSTにおける正弦定理を使って求めたら答えが3√12/2となり、間違っていました。どうしてでしょうか。何方か教えてください...😭

問題11 0に対して,演習例題11の手順1とは直線lの引き方を変え,次の手順 2で作図を行う。A内の 手順2 (Step 1 ) 円0と共有点をもたない直線lを引く。 中心から直線ℓに垂直な 直線を引き, 直線 l との交点をP とする。 (Step 2)円0の周上に, 点Q を ∠POQ が鈍角となるようにとる。 直線 PQ を 引き,円0との交点で Q とは異なる点をR とする。 (Step 3 ) 点 Q を通り直線 OP に垂直な直線を引き、円0との交点でQとは異 なる点をSとする。 (Step 4) 点Sにおける円0の接線を引き、 直線lとの交点をTとする。 このとき,∠PTS=アである。 円0の半径が5で,OT=3√6 であるとき,3 ウ で,RT=オ である。 点 O, P, R を通る円の半径は I ア の解答群 0 ZPQS ① ∠PST 2 ZQPS ③ ∠QRS 4 ZSRT

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-

物理の屈折の範囲です 空気n≒1から媒質nへ入射する場合、n1/n2=sinθ1/sinθ2より、 1/n=sin90°/sinθ0になるのでは無いのですか？ n=の式になっているのがよく分かりません

80 39 v=_3x108 -=2.25×10m/s n 4/3 6×10-7 n 4/3 =4.5×10-m 3×108 f=-= 入 6×10-7 =5×10 Hz f=v/i' で求めてもよい。 40 逆行で考えれば n = sin 90° sin 00 sino, = 1 n 臨界角以下で入射す る光をカットしてや ればよい。 右図より r =D tan 00 r 1001 D:00 全反射 tan と sin を結ぶ三 角関数の公式を使っ てもいいが,右のよ うな, sino=1/n と なる直角三角形を描 n 1 80 √√n²-1 直 ため 43 Sz そこ その こそ

これを解く時のポイントを教えてください！🙇‍♂️（規則や定理など、、、、）

(8)三角形ABCについて, それぞれ次のような条件が与えられたとき,三角形ABC がただ1つに 定まるものをア,イ,ウ,エの中からすべて選び, 記号で答えなさい。 AB=3,BC=5, ∠ABC=35° ∠ABC=35°,∠BCA=60°,∠CAB=85° AB=3,∠ABC=45°,<BCA=67° エンAB=3,BC=5,CA=7

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?

底がそろっていないときの変形の仕方が分かりませんお願いします

(3) log210.log 510-(log25 + log52) g 15 359 a= = 10g23,6=10g25 とするとき,次の式を a, b で表せ。 (1) log215 Yog=15=10g+3+109.5 =a+b (2) log275 Xog 275=/10923. dgol (S ngol b.gol gold gol (S) A (3) log445 10g2(55) (0gr 46 = log (375) = 2log ade loge 5 15 bal 10gx480 20+6 12 23+ 2 6 2. 1-Abgo) bago) - Japol-dapo) J

解説にある、sinceは〈過去の時点〉を伴う、というのは 過去から現在までの経過を示す現在完了形は含めない、 単に過去のこと（過去形の文章）に使われるということですよね？？ また（3枚目の問題では）過去を伴わないけどsinceが正解なので、必ずしもsinceは過去を伴わな... Read More

15. -------- two decades of experience in Thai cuisine, Ms. Tan has opened a new high-class restaurant in downtown New York. (A) Toward (B) Since (C) Behind (D) With em primoheq need gaim bemioheq

答え合ってるかみてほしいです！！

wo es deilgu orai bo 2 日本文に合う英文になるように,( )に適切な語を書きなさい。 1) 若い世代は手紙よりメールを好む。 brow (完答4点×4=16日 shiad modow dailynd antoood and bio The younger generation prefers e-mail ( 2)2つのうちでは,このバイオリンのほうが音がよい。 This violin sounds ( to ) letters. VIST TO the) better ( "lus" browsdT. of ) the two. 3) 私はこの犬が不細工だからよけいに好きなのだ。 Shingom head ratio orb I like this dog (all) the( better) because it is ugly. 4) 彼のことを信じるほど私はばかではない。 gried uodiew piaravib bas moboart I() better than to believe him. "ilswsd" diiw goolA oda quimorticool gasm has amine ogsugasl dailand and lone =n. Do