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英語 高校生

(a)に入るのが、attendingなのですが、なぜでしょうか? 教えてください!

その番号を記入せよ。 なんて attend ing (24点) This weekend, I had the pleasure of ( a ) my dear friend Dara Lynn's baby shower. Over a lunch of clam chowder, sirloin steak, and chocolate cake, I caught up (b) two of her friends, Amanda and Andrea, from law school. They were both lawyers now, and the subject of networking and responding to requests from people who were looking for career advice ( c ) up. Like many successful professionals, the two women were happy to help those who reached out to them for their professional opinion and guidance. However, they had a hard ( d ) believing how many of those people failed to thank them for their time afterward. It is unbelievable that anyone would reach out to a person who is obviously quite busy witha demanding job in addition to ( e )a parent and home-owner, ask that person to give up their time, and then not follow up with a simple thank you. If you are asking someone for a ( f ), you should let them know you appreciate that person's effort. Amanda told the story ofa young man, a few years out of law school, with (g) she had spent more than an hour giving advice. Shenoted he was not writing down any of the names of people or organizations she had suggested he contact. Instead of a thank-you note the following day, she received an email from him asking her ( h ) send him the names of the people she had mentioned. I was shocked that someone would be so “self-important"” and show such a ( i )

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数学 高校生

最後のところでなぜPn+1/Pnと1の大小関係を求めるのかがわかりません… 教えてください!😭

と一致するから,起こりうるすべての場合の数は 19C4 通りあり,これらは同様に確からしい。 「白球 15個と赤球4個を左から順に1列に並べる並べ方…. (*)」 n回目に取り出した球が3個目の赤球である確率を Pa とする。Pn が最大となるnを求めよ。 数学XS 418 し、取り出した球はもとに戻さない。 球の取り出し方は n= 1, 2, 19のとき, pn = 0である。 3SnS18のとき n回目に取り出した球が3個目の赤球である取り出し方は(*)において がられ-1番目までに2個の赤球、左からn番目に赤球,左からn+1番目以降に1個の赤 球が含まれる並べ方」 C一致する。これをみたす場合の数は- Cox1×19-,Ci 通りであるから D。=ユー1C2 ×1×19-,C} 19C4 (n-1)(n-2) (19-n) 2.19C4 n(n-1)(18 - n) 2.19C4 である。このとき, Pn+1 であるから n(18 - n) (n - 2)(19 - n) Pn+1 Pn となる。 38 >1のとき n(18 -n) > (n-2)(19 -n) よりn< Pn Pn+1 .nS12 3 38 =1のとき n(18-n) = (n-2)(19 - n) よりn= Pn Pn+1 3 38 .n213 Pn+1 <1のとき n(18-n)<(n-2)(19-n) よりn> 3 Pn したがって, 0< p3< P4< P5 く…< P12< P13> p14 > …>p18 >0 である。 n= 13 (答) 以上のことから, pn が最大となるnは OKIYO IOOSE-LEAF ノ-S35日 6mm uedx36 nas

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