解き方が分からないので教えて欲しいです‪><

□ 物質量と構成粒子の数の関係について,次の各問いに答えよ。 23 35.5 (1) 2.0molの塩化ナトリウム NaCl には 何個の塩化物イオンが含まれるか。 0.25 molの水H2O には、何個の酸素原子が含まれるか。 (2) (3) 4.0molのメタンCH4 には、何個の水素原子が含まれるか。 dne

青線部の「そのおのおのに対して…」のところが、どうしてそのようになるのか分からないので教えて欲しいです🙇‍♀️

よって、奇数の個数は3×P=3×4・3・2・1=72 (個) 2 男子4人, 女子3人, 計7人の生徒がいる。 (1) 7人を1列に並べるとき, 女子が隣り合わない並べ方は 通りある。 (2) 7人を輪の形に並べるとき, 女子3人のうち女子2人だけが隣り合う並べ方は 通りある。 (1) 女子が隣り合わないように並ぶには、 まず男子4人が並び, その間または両端に女 子3人が並べばよい｡ 男子4人の並べ方は 4P4=24 (通り) そのおのおのに対して, 男子の間と両端の5か所に女子3人が並ぶ方法は 5P3=60 (通り) よって, 求める並べ方の総数は 24x60 = "1440 (通り) (3) 女子3人のうち2人だけが隣り合うように並ぶには、 まず男子4人が輪の形に並び, その間の4か所のうち1か所に女子1人, 他の1か所に女子2人が並べばよい｡ 男子4人を輪の形に並べる方法は (4-1)!=6 (通り) 男子4人の間の4か所のうち1か所に女子1人を並べる方法は 4×3=12 (通り) 残り3か所のうち1か所に女子2人を並べる方法は 3×2=6 (通り) したがって 求める並べ方の総数は 6×12×6=432 (通り) 3 不等式 10g (x +5) + logs (x-3) <2を解け. 真数は正であるから x +5 > 0, x-3> 0 すなわち x>3 .....(1

オレンジの丸で囲んだところなんですけど、どうしてαとおくのですか？？

A ★15範囲でy=sin0+3cos0 のとりうる値の範囲を求めよ。 for DE

英検準1級のライティングが毎回悪いです。 1回目 内容 3/4 、構成 1/4 、語い 3/4 、文法2/4 2回目 内容 1/4、構成1/4、語い3/4、文法3/4 こんな感じで毎回ライティングの点数が1番低いです。 2回で共通しているのは、構成が... 続きを読む

Will Societies fature? with low birthrites face. Prents: Workforce, Foodshortige, Technological Innovation, Environment problem. I disagree with the idea. I have two reasons to my opinion. to get on important to First of all, it doesn't cause a foodshortage If the number of people increased, Some people who Live ChrA Parthe popularity decreased, it with bat country can't get the food enough. if food. That is Cause food problem. a Crisis in the not cause Płoblem Second of all,. it doesn't cause an environmental problem. These days, many trash is in ocean and on the ground. This kind of problem is Caused by the people decreased, the number of trash will inclined. foo Support In conducian, I think that low birth raten twon't food shortage and an enviroment a Is marraige becoming less important today than it was in the past ?! I agree with the idea. I have two reasons to support my opinion... university. ability of their studying, their much First of all, having children cost much money. It goes saying Therefore, to support their that these days many students parents must pay money. Secord of all, some women wants to live alone. (Vowadays, the number of women is who is working increasing. As a result, they can have enough money to live by themself so they don't think it is necessary to marry. increasing is is becoming less important. In conclusion, I think that their money problem and the number of people who want to be independent the problem that the marraige is

1から10までの答えを教えて欲しいです🙇‍♀️

に入れるのに最も適当なものを1つずつ選びなさい。 since last year. been heard of 2 had heard of 問7 1 He hasn't 8 3 have heard of 4 heard of 2 They couldn't agree on any of the problems 9 at the meeting. 1 discussing 2 being discussing 3 discussed 3 These books have to 10 back to the library by tomorrow. 1 take 2 be taken 3 taken 4 His advice helped me 11 make 2 making 5 The trouble with him is 12 what 2 which 6 Lots of people have been visiting our new building, 13 unique. that 8 No 15 another 2 which 14 seeing his daughter, he smiled and ran up to her. 1 To 2 On 3 As #9 She stood aside in order to up my mind to study abroad. 3 made 4 be discussed 4 to making he is lazy and he seldom meets deadlines. 3 why 4 that 10 The higher a mountain is, 1 more 2 most 3 whose 16 her mother could pass. 2/so as 3 so that 17 4 taking student can do better than John in mathematics. 2 any other structure is really 4 what 4 During people like to climb it. 3 the most 4 all 4 for that 4 the more

英検準一級英作文の添削をしてもらいたいですm(__)m（120-150字） 小さなことでもアドバイスして下さると助かります💦

TOPIC No. 7 Should people trust information on the Internet? one o the for POINTS Landbou Pick up the couldren from school Izpbord251 boblá a so oney restauran Learning Jestlesid not real 169 01, VITS News Hooleje Body bunegpected fee. Online shopping-quradio testbende viure upptcy. Social media 3 1 769 4 Ho smit shomist on SHBot find his glis number.

答えがなくて困ってます。 答えの方よろしくお願いいたします。

第 18 1章 動詞中心のイディオム ① "STEP 48 基礎 PHURA 選択肢のなかから( 1 Peter, the shower is dripping. Please ( 1 turn down (3 turn out 3 They decided to ( typhoon. 1 give in 3 put out ( 1 cause 2 Since it was my first flight, I was nervous as the plane ( 1 got off 2 put off 3 took off 4 went off 2 Put 6 A serious disease broke ( 1 through 2 off 5 Your room is a mess, children. ( to bed. 1 Give 7 My grandmother brought ( 1 about 2 in 2 turn off 4 turn away にふさわしいものを1つ選べ。 9 "To put some money ( 1 across (2) aside 第18-1 章 動詞中心のイディオム① 2 call off 4 pass away pp. 196-203( 488- ) the outdoor concert because of the approaching 4 Shopping for fruits and vegetables at local markets is pleasurable and may ) to more variety in your diet. (2) reason 3 lead 8 Everything she told me turned ( 1 in 2 above 学習日 ) the water completely. 3 Run 年 ) six children. 3 out 4 take A 2 別冊解答pp.57~ 4 Get ) after rats arrived on the island. 3 down (4) out ) to be true. (3) out ). ) away these books before you go up 4 over (東邦大) )" means "to save some money." 3 back 4 under ( 青山学院大) (関東学院大) (摂南 (帝京 (広島経済 (共立女

解き方が分からないので教えて頂きたいです💦

3(7+11) 540 2 自然数 15,40nの最大公約数が 5で最小公倍数が600である。 このようなnは 個あり, 最小のnは 最大のnは である。

並べ替えの問題がわかりません🥲教えてくださいお願いします🙇‍♀️

rmativ nt Each of us carries just over 20,000 genes that encode everything from the keratin in our hair down to the muscle fibers in our toes. It's no great (1) (own / came / where / from / our / mystery / genes): our parents bequeathed them to us. And our parents, in turn, got their s genes from their parents. But where along that genealogical line did each of those 20,000 protein-coding genes get its start? That question has hung over the science of genetics (2) (ago / dawn / century / since / a / ever / its). "It's a basic question of life: how evolution generates 1 novelty," said Diethard Tautz of the Max Planck Institute for 10 Evolutionary Biology in Plön, Germany. New studies are now bringing the answer into focus. Some of our genes are immensely old, perhaps (3) (to / way / back / dating / all the / the) earliest chapters of life on earth. But a surprising number of genes emerged more recently. many in just the past few million years. The youngest evolved after our 15 own species broke off from our cousins, the apes. Scientists (4) (being / finding / into / are / genes / come / new) at an unexpectedly fast clip. And once they evolve, they can quickly take on essential functions. Investigating how new genes (5) (understand / help / become / scientists / important / may / so) the role they may play in diseases like cancer. [1] Read the passage and rearrange the seven words in (1) - (5) in the correct order. Then choose from 1-4 the option that contains the third and fifth words. (1) 13rd: our (2) (3) (4) (5) 5th: genes 3rd: ago 5th: since 3rd: back 5th: the 2 3rd: where 5th: came 2 3rd: its 5th: ever 23rd: the 5th: back 2 3rd: genes 5th: into 1 3rd: genes 5th: being 1 3rd: may 5th: scientists 3 3rd: scientists 5th: understand 3 3rd: genes 5th: from 3 3rd: its 5th: a 3 3rd: way 5th: back 3 3rd: finding 5th: genes 23rd: important 5th: help 43rd: help 3rd: own 5th: came 3rd: came 5th: dawn 43rd: the 5th: the 4 3rd: new 5th: come 5th: understand may may understand thep (早稲田大) wystery. ne TOL Recome Sc

赤線部のようになるのが分からないので教えて頂きたいです！

7 交 30 場合の数と確率 11 場合の数 (1), 例題 11 倍数の個数 6個の数字 0, 1, 2 3 4 5 の中から異なる3個の数字を取り出して, (百の位は 0とはならないように)3桁の整数をつくる。次の3桁の整数は何個できるか。 (1) 321より大きい整数 (2) 2の倍数 (3) 5の倍数 (4) 3の倍数 [13 青山学院大・改 解法へのアプローチ (2)2の倍数は一の位が偶数である。 (4) 3の倍数は,各位の数の和が3の倍数となる。 5の倍数は一の位が0か5である。 (3) e 63 をB, (1) (2) 解答 (1) 百の位が3, 十の位が2の場合, 324, 325 のみで2個。 百の位が 3, 十の位が5の場合 4C1=4 (個) 百の位が3, 十の位が4の場合 4C1=4 (個) 百の位が4の場合 5P2=20(個) 百の位が5の場合 5P2=20(個) よって, 321より大きい整数は 2+4+4+20+20=50(個) (2) 2の倍数は一の位の数字が 0 一の位が0の場合 5P2=20(個) 2 4のものである。 CHOOS 一の位が2の場合 5P2個から 012,032,042,052 を引いて 20-4=16(個) 一の位が4の場合、一の位が2の場合と同様に16個 よって、2の倍数は 20+16×2=52 (個) (3) 5の倍数は一の位の数字が0.5 のものである。自闘を請求 第一の位が0の場合、20個 一の位が5の場合, (2) と同様に考えて 5P2-4=16 (個) 1845 よって, 5の倍数は 20+16=36 (個) (4)3の倍数は各位の数字の和が3の倍数のものである。 0から5までの3つの数字の中で,和が3 の倍数となるものは 0 を含むものは, {0, 1,2}, {0, 1,5}, {0, 2, 4}, {0, 4,5} 0を含まないものは, {1, 2,3},{1, 3,5}, {2, 3,4}, {3, 4, 5} だけある。 例えば, 0, 1,2の場合, できる整数は 3P3-2個 1,2,3の場合、できる整数は 3P 3個であるから, 3の倍数は (3P3-2) ×4+3P3×4=40 (個) 13041 64 ある AHSIN MYIN (2) 5の倍数 (4) 4500より大きく 8500より小さい整数 ★65 (1) (2) ★60 類題にChallenge ★62 5個の数字 0, 2,4, 68 から異なる4個を並べて4桁の整数をつくる。次 の整数は何個できるか。 (1) 4桁の整数 (3)3の倍数 [13 駒澤大] Jr う (1 (2 €