45の(2)教えて頂けると助かります。よろしくお願いします🙇‍♀️

110 第1章 場合の数と確率 □ 44 男子4人, 女子4人が男女交互に1列に並ぶ方法は何通りあるか。 □ 45 equations という単語の文字をすべて使って順列を作るとき, 次の問いに えよ。 (1) 少なくとも一端に子音の文字がくるものは何通りあるか。 (2) e との間に文字が2つあるものは何通りあるか。 例題 8 A, B, C, D, E の5文字をすべて使ってできる順列を, ABCDE を 1番目として, 辞書式に並べるとき, 次の問いに答えよ。 (1) 15 番目の文字列を求めよ。 (2) CBEAD は何番目の文字列か。 指針 ABCDE, ABCED, ......, BACDE, BACED, ..... EDCBA と並ぶ。 適当なとこ ろで区切って個数を数える。 (1) ABOOO, AC○○○の形の文字列は,それぞれ 3!=6 (個ずつある。 よって, 15番目の文字列はADO○○の形の文字列の3番目である。 (2) CBEAD の前に並ぶ文字列は,次の形である。 CD

高校数学Aです 大問45の(2)、解説を見ると、式が　7P2✖️6！✖️2 となっているんですがなぜ✖️2するのですか？

45 equations という単語の文字をすべて使って順列を作るとき, 次の問いに 答えよ。 (1) 少なくとも一端に子音の文字がくるものは何通りあるか。 (2)eとaの間に文字が2つあるものは何通りあるか。 るから -7･6・5・4・3･2･1 (通り) 2,3,4の4通りの数字を 順列であるから それぞれ3通りある。 り) まとめにする。 生徒5人 方は6通り 人の並び方は 3! 通り -2.1×3.2.1 り) は 5P2通り び方は 6! 通り 3・2・1=14400 (通り) 45 (1)母音は5文字, 子音は4文字ある。 9 文字全部の順列は 9! 通り 両端に母音の文字を並べる方法は 5P2通りで, そのおのおのに対して, 残り 7文字の順列は 7! 通りあるから, 両端に母音の文字がくる順列 は5P2×7! 通り よって, 少なくとも一端に子音の文字がくる順 列は 9!-5P2×7!=9!-20-7! =7!(9.8-20) =5040.52 =262080 (通り) (2) まず, e○○の○○に2文字を並べる方法は 7P2通り そのおのおのに対して, e○○a をひとかたまり とみて、これと残りの5文字を並べる方法は 6! 通り a○○e の場合も同様に考えることができる。 よって, e との間に文字が2つある順列は 7Px6!×2=42x720x2 = 60480 (通り) 数学A A・B・C問題 の

回答がなく、丸つけしたいので長いし多いのですが、よろしければ教えて頂けたら嬉しいです

ALIENS Grammar 6 Reading ▸ Topic 6 Ethical Consumption 関係代名詞 接続詞 読解 1 〈大意把握 > 1. 本文の第2~4段落に書かれている話題として最も適当なものを、選択肢から1つずつ選びなさい。 a) 第2段落 ( ) b) 第3段落( 第4段落 c) ) ① エシカル消費としてリサイクル製品を買うことについて。 (2 エシカル消費として食品の無駄を省くことについて。 3 エシカル消費としてフェアトレードの生産物を選ぶことについて。 〈内容理解〉 2. 第1段落第5文Do you think about the people or place that made it? を日本語に訳しなさい。 3. 第2段落第7文 Fairtrade products are not as cheap as other products. を日本語に訳しなさ 4. 第3段落第5文 That is more than the WFP's aid to hungry people in the world. を、 That の内容を具体的に示して日本語に訳しなさい。 WFP は 「世界食糧計画」 とすること。 5. 本文の内容に一致するものには○、一致しないものには×を記しなさい。 ① Ethical consumption came from concern for people and the environment. (2) Cacao and coffee beans are cheap, but farmers who make them are rich. ③ Buying energy-saving products is an example of ethical consumption.

Wordhuntのところを教えてください

28 tiredness [tárərdn alertness [ǝlá:rtnəs] pain [pémn] reliever [rili:vər] bar|bá:r] particular [pərtíkjulər] social [sóufǝl] ritual [rítfuǝl] use (z) [jú:s] café [kæfér]Ⓡ ceremony [sérəmòuni] Word Hunt 1. the feeling you have when part of your body hurts ( 2. not sleeping ( 3. paying attention to what is around you and ready to act 5 energy drink IF 10 pain reliever 10 chocolate bar 13 France [fræns] 757 is found not only in coffee, also in pain relievers and chocolate bars. 3 Many societies have created pattaular social rituals around the use of caffeme: sternoon tea in the U.K., the café culture of France, and the tea ceremony in Japan. 1. T/F 2. T/F 3. T/F 次の意味を表す英単語を本文から探しなさい。 b. They do e c. They tak 2. Which of a. Choc b. Tea c. M 3. Wh a

Wordhuntのところを教えてください

28 tiredness [tárərdn alertness [ǝlá:rtnəs] pain [pémn] reliever [rili:vər] bar|bá:r] particular [pərtíkjulər] social [sóufǝl] ritual [rítfuǝl] use (z) [jú:s] café [kæfér]Ⓡ ceremony [sérəmòuni] Word Hunt 1. the feeling you have when part of your body hurts ( 2. not sleeping ( 3. paying attention to what is around you and ready to act 5 energy drink IF 10 pain reliever 10 chocolate bar 13 France [fræns] 757 is found not only in coffee, also in pain relievers and chocolate bars. 3 Many societies have created pattaular social rituals around the use of caffeme: sternoon tea in the U.K., the café culture of France, and the tea ceremony in Japan. 1. T/F 2. T/F 3. T/F 次の意味を表す英単語を本文から探しなさい。 b. They do e c. They tak 2. Which of a. Choc b. Tea c. M 3. Wh a

このプリントの日本語訳を教えてください

未習長文D インフォメーションリスト |adopt medicine to start to deal with or think about something ina particular wav 1. a substance used for treating an illness, especially a liquid you drink the treatment and study of illnesses and injuries 2. to depend on someone to provide help, advice, etc. to think that you are better than someone else, for example because you are more sucessful, or of a higher social lass than they are fair and sensible look to look down on reasonable can/could afford people were better off using It would be better for people to use traditional traditional medicine rather than medicine rather than having no medicine. no medicine at all. establish to have enough money to buy or pay for something to start a company, organization, system, etc. that is intended to exist or continue for a long time 1.(n) the work of a doctor or lawyer, or the place where they work 2.(v) to use a particular method or custom the act of starting an organization, relationship, or system the process or fact of being received as adequate, valid, or suitable practice establishment acceptance a small creature such as a fly or ant, that has six legs, and sometimes wings anything that is living, such as an animal, fish, or insect, but not a plant a plant like a small onion, used in cooking to give a strong insect creature garlic taste bacteria very small living things, some of which causes illness or disease a chemical substance found in your blood. cholesterol in your blood may cause heart disease. to absorb something into the body, for example by breathing or swallowing a scientific test done to find out how something reacts under certain conditions, or to find out if a particular idea is true (v) to make something less dense or numerous look at something again closely if someone has a stroke, an artery (tube carrying blood) in their brain suddenly bursts or becomes blocked, so that they may not real or not made of natural things but made to be like something that is real or natural a substance used in chemistary or produced by achemical cholesterol Too much take in experiment thin take a second look at stroke die or be unable to use some muscles artificial chemical process to help to make something happen to help to make something happen Contribute think highly of o place Migh value on

因数分解です。 途中までは解けたのですが、この続きが分かりません 教えて欲しいです🙇‍♂️🙇‍♂️ 英語の意味は答えを出して、1番大きい答えと1番小さい答えを書け です。±を両方解くってことだと思います。

O and the larger answer in the space to the right. Round Determine the SOLUTIONSto the quadratic equation below.Type the smaller answer in the space to the left your answer to the nearest thousandth, if necessary. Answers may be typed asfractions as well. 0 = x? + 4x --8 2 Smaller Larger Answer Answer QUADRA,

長文を読み取るのが苦手で問題を解くのに苦戦しています、教えてください🙇‍♀️

Track 7-8 Reading ペットボトルの水が普及していますが,これは喜ばしい現象なのでしょうか。 |Note G Sales of bottled water in America have been climbing for years. In the の year 2015 alone, the total volume of bottled water sold in the United States was abont 44.3 billion liters. This means each American bought more than five half-liter bottles of water per week. G people have become more conscious of 5 Bottled water sales have increased as their health. Bottled water is a healthy alternative to *soda with unhealthy contents such as sugar and *caffeine. In fact, osales of soda have been dropping year by year. For carrying water with you, bottled water is convenient. Apart from that, some people believe bottled water is safer than *tap water, although tap water has been 10 proven safer in many cases.

長文を読むのに苦戦して答えがわからないです。 教えてください🙏🙇‍♀️

eading UNIT 2 /a /20 /0 d) /o0 社会問題 完了形-完了行形(現在 通吉 ) Reading ペットボトルの水が普及していますが、これは喜ばしい現象なのでしよう DSrack 7-8 G0 下線部のを日本語に訳しなさい。 コ O0 下線部のの理由を説明する次の文を完成させなさい。 O( )が高まり、 )を含む O ( )を飲むようになったから、 (2AA=B) 6( of water per week. 代わりに O( の 5 ア ペットポトルごみへの課税 ペットポトルの水の販売の禁止 ペットボトルのリサイクルの推進 イ ウ エ ペットボトルを捨てた人への罰則 10 proven safer in many cases. GO(0 )に入れるのに最も適切なものを選び、記号で答えなさい。 (6点) の。 has stopped will be stopped イ stopped エ will have stopped ア a lot of concern over the negative impacts of *consuming bottled water. One To ウ othe empty bottles are increasing waste; only 21.7% of plastic bottles bought O Bottled water is safer than tap water. D More than half of plastic bottles bought in America in 2015 were ro America in 2015 were recycled while the rest ended up in *1and6lls, Some cities nn。 15 San Francisco have introduced a ban on the sale of single-use plastic water botties The city is hoping °it( 0 )sending any waste to landflls by 2020 To produce and transport each bottle of water, a hugge amount of energy is spenし One study finds it takes up to 2,000 times more energy to produce bottled water than tap water. 20 In addition, there is concern about chemicals that come out of plastic bottles into water. Do they harm human health? It's not clear, but some people have stopped (270 words) buying anything in plastic bottles. *soda 炭酸飲料,ソーダ Words & Phrases ock2 caffeine カフェイン tap water 水道水 consume 消費する 次の語句を聞き, CDのあとについて言ってみよう。 ロ sale landill 埋め立て地,ごみ処理場 ロ convenient ロ negative Damount |Note bottled ペットボトル入りの ロ prove Dempty ロin addition volume ロwaste ロchemical bottled は元々「びん詰めの」「容器入りの」という意味。 bottled food 「びん詰めの食品」,. bottled beer 「Uん詰 めのピール」などという。飲料水を容器に入れるときには ペットボトルが使われることが多いことから、bottled water は一般的に「ペットボトル入りの飲料水」をさす。 case ロconscious ロ produce O harm ロ ban Dalternative ロtransport ロclear ロ concern ロ content Sales of in have boen for . In ( These , , and places are its . been people is than *tap water, water has been For carrying water with you, bottled is , Apart that, some their . is a to *with contents Bottled increased as °have of 44.3 liters. This each than five bottles UNIT 2 year 2015 alone, the total yolumo of in the United about

式を求める問題。 bの問題の、(60-3t)の3tがどこから来たのかが分かりません。出来るだけ、分かりやすい説明をお願いします。 海外在住のため問題が英語なので、問題を訳したものを下に貼っておきます。 よろしくお願いします☺️ ジャッキーは運動が好きで、1日... 続きを読む

305. Jackie enjoys exercise and plans to walk, jog and cycle for a total of 60 minutes a day. Every minute Jackie jogs she uses 11 kilojoules of energy. She walks for twice as long as she jogs and uses 5 kilojoules per minute while walking. a) If Jackie spends t minutes jogging what is her total energy use jogging and walking? Encou = it+ 2tx5 The rest of the 60 minutes Jackie cycles and uses 8 kilojoules per minute of cycling. b) Form an equation in t showing the amount of energy Jackie uses on her 60minute exercise. t=10 Enegu- 2it 860-3E))