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数学 高校生

写真のところの因数分解?の仕方が分からないので教えてください!

△ABP において 合LAPB △ABC において, 余弦定理により =180°-(105+ 4+5°-6° T 2.4·5 8 ZAPB=180°-(ZPAB+ZPBA)=45° 09 sin45° COS C = AP =45° 正弦定理により sin 30° .50 GAP= よって, △BCD において, 余弦 50sin30° =25/2(m) BD'34°+2°-2·4.2. よって AP= sin 45° 8 BD=18 △APQにおいて ZPAQ=ZPAB-ZQAB=60° 弦定理により BD>0 であるから ロLPAQ=106-6 PQ'=(25/2)?+ (50/2 )?-2·25/2·50/2 cos 60° D+PQ=AP4J0 126 00+PQ=AP+A00 Se-Ter -2AP·AQC0S 4 PR △ABC において, 次の等式が成 =(25/2){1+2°-2-2) (1) (6-c)sinA+(c-a)sinB C=D15 お合ち大 (2) c(cos B-cos A)= (a-b)(1 =25°.2(1+4-2)==25°.6 ゆえに, PQ>0 であるから PQ=25/6 (m) (1) △ABC の外接円の半径をR (6-c)sinA+(c-a)sin =(6-c). D 2R 9 PR 2R 水平な地面の地点Hに, 地面に垂直にポールが立っている。 2つの地点 A, BからポーM 124 端を見ると, 仰角はそれぞれ30° と 60° であった。また, 地面上の測量では A, B間の 20m, ZAHB=60° であった。 このとき, ポールの高さを求めよ。 ただし,目の高さは いものとする。 ab-ca+bc-ab+ca- 2R ポールの先端をP, ポールの高さを PH=xm とおく。直角三角形 0= したがって、与えられた等式 (2) 余弦定理により c(cos B-cos.A)-(a-b =c(cosB-cos.A)-(a-b C+αーぴ +c- d APH において 単位:m -=HV tan 30° 30% A X X (m) x A E 26c ニ D 直角三角形 BPH において 3x 3。 ワー9+0 H Check (heck? heck!

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英語 中学生

1~4の問題どうしたら(どこを見たら)答えのようになるのが分かるんですか?分かるとこでいいんで教えてください🙇‍♀️ 答え)(1)ア (2)to (3)ウ (4)イ 写真見にくくてごめんなさい🙏

Kate: Yes, but if you can't eat all of it, it's going to become waste. So, I think you shouk Kate: Then, you can buy it *by weight. You can buy a little of it today, and if you like t not buy too much. In some countries, there is too much food waste, and it is a big 2 次の英文は,アメリカでホームステイをしている涼(Ryo)が,ホストマザーのケイト(Kaa 8-(2020年)京都府(前期選抜 共通学力検査) フ (graph)と表(table)を参考にして英文を読み, 以下の問い(1)~(4)に答えよ。 not I'l like it. Ryo : You mean that I can buy any *amount of fruit that I want here, right? Ryo : Right. In my town in Japan, we have the same problem. When I learned abot was surprised ② problem. know that people *throw away food which they can still eat Kate: Really? Please tell me more about it. Ryo : I found a graph on the website of my town. It shows some kinds of kitchen garbaca people throw away at home, and they are the things people didn't have to throw awar Look, we can see it on my phone here. Kate: I heard that people cut and throw away too manyparts of food when they cook. Ryo : Yes. About eighteen *percent of the kitchen garbage in the graph shows that. Kate: What does the biggest number mean? Ryo : It means that about thirty-six percent of the kitchen garbage is food which was not used. I see. Why does such a thing happen? Look at this table. I also found it on the same website. People in the town answer Kate: Ryo: the question about their reasons for food waste, and you can see some of them in the table. Kate: More than fifty percent of the people say the same reason for it, right? What is it? Ryo : They say that they throw away food when it has *gone bad. And I want you to look at this. Kate: Do you mean this, about seventeen percent? What is their reason? Ryo : They say that they buy too much food to eat. For example, if they buy too mich and can't use it all for cooking, it may go bad. Then, it will become waste. Kate: Now I'm sure that we should stop buying too much food. Buying by weight is a good way for that. We can buy only the amount of food that we need. Ryo: Iagree with you. But in Japan, we don't usually buy food in such a way. So. we ho to find another way. Do you have any ideas?

解決済み 回答数: 1
英語 高校生

2人の意見の文章からレポートをつくるときのタイトルは1人の意見だけについてのタイトルでもいいんでしょうか?? この問題では解説には2人目が日本人女性の話してるからとありますが、1人目も日本人女性の話軽くしてますよね。もし1人目の人が日本人女性の話してなくてもレポートのタイ... 続きを読む

You are doing research on people's sleeping habits. You found two articles. Japanese women sleep less than 7 hours each day. For some people, that might be enough, but for many others, it could cause some problems in the sleep a little more than eight hours and a half on average, which seems It looks like people in my Country are doing fine. Both men and women Around the globe, the amount of sleep that people get every night has long run. Japanese people, especially women, would need more sleep. 50 第4問 (配点 16) o 第2回 実戦問題 51 Average time per day spent sleeping in selected OECD countries plus China, as of 2016 How Long Do Peopleinthe World Sleep? by Kim 9:0 9:00 9:30 8:52 8:38 8:33 8:26 July, 2018 9:00 8:30 been steadily decreasing since the 1970s. Many believe that the w technology has contributed to that decline, since it frequently disrupts o 第 8:00 7:367:52 ■Women 7:30 ロMen sleep. The graph below shows the average sleep time for men and womon 7:00 in five countries. 6:30 One noticeable point about the graph is the length of sleep for Chinese people. No one around me sleeps more than nine hours a day, except for 6:00 China USA Australia France Japan small children. How can they sleep so long? One possible explanation could be that the ratio of people working in the primaryindustry in China is very high (27.0%). Those of the other countries are between 1.4% (USA) and Opinion on “How Long Do People in the World Sleep?" 3.4% (Japan), according to the International Labour Organization (ILO) statistics. People doing physical labor might need more sleep. by Yoshimi Ito August, 2018 As Kim mentioned, Japan has to deal with the problem of short sleep. Japan shows a marked contrast to China. Japanese men sleep one hour and eight minutes shorter than Chinese men and Japanese women sleep However, that is not all. As the graph shows, women in our country sleep bour and 28 minutes shorter thanChinese women, It may not be a big sixteen minutes less than men. We should address the issue of gender gap, deal if all Japanese women slept more than seven hours and 36 minutes. Dt this “seven hours and 36 minutes 1S the average, which means a lot of too. One thing I would like to point out here is that Japanese men spend much less time on housework than women. In 2011, women spent three hours and 45 minutes a day on housework (care for household members plus routine housework) while men spent just 31 minutes, according to OECD data. It is common to see wives who work full-time do most of the housework as well. The sad truth is that there are still many men who quite appropriate to me. seriously believe that housework mustbe done by women. We might have LO start by making them change this kind of mentality. n my opinion, two things are certain. First, many Japanese are not deal with these problems right away. 無2回

解決済み 回答数: 1
英語 高校生

問2について 答えは②らしいのですが、どうしても納得いきません。本文では、「現金を引き出すことは不便で危険だ」と言っていますが、「クレジットカードが便利で安全だと思う」なんて一言も書かれていません。 どなたか納得のいく説明お願いします🙏🏻

Change May Come to Denmark's Cash By Sandra Gray, Copenhagen March 8, 2020· 1:25PM enbbots Cash may be on the way out, in Denmark, where credit card and mobile pavments have been adopted_widely and have become more popular than old-fashioned cash payments. Figures from 2019 show that last year only 16 percent of ordinary store payments were made in cash! The government is now considering a proposal to allow businesses such as restaurants, convenience stores and clothing stores to refuse cash payments) Dana Hasbrook of Copenhagen is looking forward to a_cashless_society. and savs, Having to withdraw money is inconvenient and _risky." Police officer Peter Nielson also supports the proposal. "Criminals won't be able to steal money from stores anymore, which will make my job easier." Not everyone is happy about a world without cash, however. /…This is a double-edged sword. Certainly, people's wallets will be lighter, but what happens when there's a problem with the system that processes credit card and mobile payments?” says Mary Daniels, a schoolteacher. “Also, when you use a credit card at a store, staff members can see your name. People shouldn't have to give out their personal information for the sake of convenience."

解決済み 回答数: 2