学年

質問の種類

現代文 高校生

練習190のアとイの場合わけはどういう意味ですか?

も同じ確率であると なる確率 pu+l >1 のとき pn 50-n rerE 7) >1 50-n>5(n+1) 0SnS49 より 6n< 45 となり よって,n=0, 1, 2, . ., 7 のとき *n+1>0 より, 不等号の 向きは変わらない。 nく7.5 食出 pnく pn+1 Pn+l <1 のとき 4) pn n>7.5 と同様にして Dn> Dn+1 よって,n=8, 9, 10,.., 49 のとき 7, (イ)より boく piく……< く bs> D >· > bs0 6 章 n=8 したがって,Dnを最大にするn の値は 16 問題 190 表の出る確率がかである硬貨を10枚投げるとき, 表の出る枚数がn枚である確率を pnと する。ただし,0<か<1 とする。 (1) bn を求めよ。 (2) be が Dn の最大値であるための確率かの値の範囲を求めよ。 19 ら確率) A(n) が10の0幅 とならない確 (1) 表の出る確率がかのとき, 裏の出る確率は1ーかであるから, 求める確率 pn は Pn = 10 Cnp"(1-p)10-n Dn+1 〒 10 Cn+1が"+1 (1-)°-n » Cr が(1- )*-*を利用 (2) (1)より これより,Dn+1 と Dnの比をとると Dn+1 10 Cy+1が*+ (1-)°- ニ 10 Cn が (1-か)0ーn 10-1 Dn ニ 10! %D 10! 求めよ。 z!(10-2)! (10-n)か ニ (10-n)か Dn+1 (ア) Dn 21のとき 21 (10-n)カ(n+1) (1-) 分母をはらうときは, 掛 ける値の符号に注意する。 を利 0SnS9, 0<b<1より よって nS116-1 すなわち, n<11カ-1のとき DnS Dn+1 イ) ハ1のとき, (ア) と同様にして Dn Dn+1 n2 11カ-1 すなわち, n211カ-1 のとき ここで, pnの最大値が oであることより boSかS……<Ds S beこ 加三:三 Dio 7, 4) とこのことより 5 11カー156 Dn 2 Da+1 5/5 616 +1)xml これは 0くpく1を満: よって 6 17 SNSIバた言 、それら

未解決 回答数: 1
英語 高校生

すみません!(2)の答えが④となっているのですが,何故そうなるのかわかる方至急解説お願いします😭 私は,③のShe looked fine.で「元気そうだったよ。」のような答えになると思ったのですが…。大学の過去問で,解説が載っていなものです泣

I 次の(ア)、(イ)の会話が成立するように、(1)~ (3)、(4)~ (6) の空欄に入る最も適切な会話をそれ ぞれの~のの語群中から一つずつ選び番号で答えなさい。 (ア)Kate: Hello, this is Kate speaking. *印の語句には、注があるので参照すること。 no eendanp lo tol s adug INancy: Oh, hi Kate. ( 1) nT9 n balla Jest\eluaoiusg mvowo () itesvinu e oti betimbe aus not Jom TKate: I just wanted to know if Ann is still in the hospital. ot moiaeimbe nimoob birow iedけ esobal Nancy: Well1, she left the hospital last week. She gave me a telephone and(2)eu jest bosibysbaste usiqs Kate: Did she? Good news. Both Ann and I used to enjoy working as volunteers at the St. Mary's M Day-care Center. We are going to have a charitv party there next week. I have been just won lowondering ifI should call her or not. ahoz hong don se uoy ( 8 ) bム agsinsvbs Nancy: You don't need to hesitate to invite her to the party. (o13 lo )mabienq odh 918OV 20 Kate: That's true. I hope she's recovered her strength well enough to attend the party.us 199 Nancy: In any case, I'm sure she will be pleased to hear from you. Jestrerh bas ebsg odt of Kate: Thank you. I will call her today. Can I have her phone number? 清物学人emieimbe tte (1) 0 How about you? 2 What's up? のly す I 3 How come? ④ What about? (2) 0 She was in critical condition. ② She has had a renewed attack of her disease. ③ She looked fine. ④ She sounded all right.VぬJ 部本日 (ト) 昭着不S {o)

解決済み 回答数: 1
英語 高校生

英語に自信がある人回答づくりお願いします! ※書き込みは気にしないでください。 これプラス、問題に続きがあって、 問5 本文には、実物の動物を見ることによって人々がより深く理解できることが3つ書かれています。それらを日本語で答えなさい。 問6 本文には、動物園... 続きを読む

第4問 次の英文を読んで、 設問に答えなさい。①~6は段落番号です。 黒体 6) のIn my view, (1)it_is perfectly possible for many species of animals living in gon.. ie parks to have a quality of life as high as, or higher than, in the wild. 'Animals in ood z0os get a varied and high-quality diet with all the supplements required. and anv 1pesses they might have will be treated.Their movement might be somewhat restricted. mt they have a safe environment in which to live, and they are spared bullying and social 神年 predators*2 or the irritation and pain of parasites or injuries. The average captive animal racism*1 by others of their kind. They do not suffer from the threat or stress of will have a greater life expectancy compared with its wild counterpart, and will not die of drought, of starvation or in the jaws of a predator. Alot of very nasty things happen to truly wild' animals that simply don't happen in good zoos, and to view a life that is 'free' as 術保者一 one that is automatically ‘good' is, I think, an error. Furthermore, zoos serve several key purposes. の Firstly, zoos aid conservation. Colossal numbers of species are becoming extinct across the world, and many more are increasingly threatened and therefore risk extinction. Moreover, some of these collapses have been sudden, dramatic and unexpected, or were simply discovered very late in the day. Aspecies protected in captivity can be bred up to provide a reservoir*3 population against a population crash or extinction in the wild. A good number of species only exist in captivity, with many ofthese livinginzoos. Stillmore only exist in the wildbecause they have been reintroduced from zoos, or have wild populations that have been1o0osted by captive bred animals Without (2these efforts there would be fewer species alive today. Although reintroduction successes are few and far between*4, the numbers are increasing, and the very fact that species have been saved or reintroduced as a result of captive breeding proves the value of such initiatives. ③ Zoos alsoprovide education. Many children and adults, especially those in cities, will never see a wild animal beyond a fox or pigeon. While it is true that television documentaries are becoming ever more detailed and impressive, and many natural history specimens are on display in museums, there really is nothing to compare with seeinga living creature in the flesh*5, hearing it, smelling it, watching what it does and having the time to absorb details. That alone will bring a greater understanding and perspective to many, and hopefully give them a greater appreciation for wildlife, conservation efforts and how they can contribute. ④ Inaddition to this, there isalsothe education that cantake place in Z0Osthrough signs, talks and presentations which directly communicate information to visitors about the animals they are seeing and their place in the world. This was an area where zoos used to be lacking, but they are now increasingly sophisticated in their communication and 8.

回答募集中 回答数: 0
英語 高校生

英語に自信がある人回答づくりお願いします! ※書き込みは気にしないでください。 これプラス、問題に続きがあって、 問5 本文には、実物の動物を見ることによって人々がより深く理解できることが3つ書かれています。それらを日本語で答えなさい。 問6 本文には、動物園... 続きを読む

第4問 次の英文を読んで、 設問に答えなさい。①~6は段落番号です。 黒体 6) のIn my view, (1)it_is perfectly possible for many species of animals living in gon.. ie parks to have a quality of life as high as, or higher than, in the wild. 'Animals in ood z0os get a varied and high-quality diet with all the supplements required. and anv 1pesses they might have will be treated.Their movement might be somewhat restricted. mt they have a safe environment in which to live, and they are spared bullying and social 神年 predators*2 or the irritation and pain of parasites or injuries. The average captive animal racism*1 by others of their kind. They do not suffer from the threat or stress of will have a greater life expectancy compared with its wild counterpart, and will not die of drought, of starvation or in the jaws of a predator. Alot of very nasty things happen to truly wild' animals that simply don't happen in good zoos, and to view a life that is 'free' as 術保者一 one that is automatically ‘good' is, I think, an error. Furthermore, zoos serve several key purposes. の Firstly, zoos aid conservation. Colossal numbers of species are becoming extinct across the world, and many more are increasingly threatened and therefore risk extinction. Moreover, some of these collapses have been sudden, dramatic and unexpected, or were simply discovered very late in the day. Aspecies protected in captivity can be bred up to provide a reservoir*3 population against a population crash or extinction in the wild. A good number of species only exist in captivity, with many ofthese livinginzoos. Stillmore only exist in the wildbecause they have been reintroduced from zoos, or have wild populations that have been1o0osted by captive bred animals Without (2these efforts there would be fewer species alive today. Although reintroduction successes are few and far between*4, the numbers are increasing, and the very fact that species have been saved or reintroduced as a result of captive breeding proves the value of such initiatives. ③ Zoos alsoprovide education. Many children and adults, especially those in cities, will never see a wild animal beyond a fox or pigeon. While it is true that television documentaries are becoming ever more detailed and impressive, and many natural history specimens are on display in museums, there really is nothing to compare with seeinga living creature in the flesh*5, hearing it, smelling it, watching what it does and having the time to absorb details. That alone will bring a greater understanding and perspective to many, and hopefully give them a greater appreciation for wildlife, conservation efforts and how they can contribute. ④ Inaddition to this, there isalsothe education that cantake place in Z0Osthrough signs, talks and presentations which directly communicate information to visitors about the animals they are seeing and their place in the world. This was an area where zoos used to be lacking, but they are now increasingly sophisticated in their communication and 8.

回答募集中 回答数: 0