青丸で囲んだ、<=y/2とはどういう意味というか、なぜこのようになるのですか？？

さくなるのは 2 1 + 1 + 1 + 1 = 1, =1, x≦y≦z を満たす自然数x, y, z の組をすべて求めよ。 1≦xSyszから121212 したがって 1≦ m=4,n=8 3 x=1の場合 1+-+ 1+1+1=1 -=1 となり不適。 1 1 x=2の場合 + 2 y は自然数であるから x = 1, 2,3 + 1² = 1 4²² 1から よって 1 2 x=3の場合 1/3+1/+12=1か 1から y = 1 + 1 + 1 = 1 + 1 + 1 y=2のとき 12=12+1/2 となり不適。y=3のとき 2-y + 1 2 ² = 2 y 答 (x,y,z)=(2,3,6), (2,4,4), (3,3,3) ゆえに 2y≦4 1/12/1/3+1/1/2から から z=6 y=4のとき 1/2=123+1/1/2から から z = 4 ゆえに y=3, z=3

どうして青丸のところが33となるのですか？

2 等比数列{an}において,初項から第5項までの和が 33, 第2項から第6項までの和が 66 であるとき, 初項 α1,公比r を求めよ。 また, 第4項から第8項までの和を求めよ。 初項から第5項までの和が33であるから a₁ + a₁r+a₁²+a₁r³+a₁r¹=33 第2項から第6項までの和が66であるから a₁r+a₁r²+a₁r³+a₁r²+a₁r5=-66 (2) 25 (a₁ + a₂r+a₁r² + a₁r³+a₁r¹)r=-66 これに ① を代入すると 33r=-66 よってr=-2 このとき, ① から 11a1=33 よって 1=3 また、第4項から第8項までの和は a₁r³+a₁r¹²+a₁r³+ a₁rº+a₁r² = (a₁ + a₁r+a₁r²+a₁r³+ajr²)µ³ =33.(−2)3=-264

どうして青丸の所は>=0にならないのですか？

1 m,nを自然数とする。 mn-m+n=36 が成り立つようなm, nの組は ア の値が最も小さくなるのはm= n= ウ 1 1 1 ( )番 名前( 2 -+-+ x y 2 イ mn-m+n=36から (m+1)(n-1)= 35 m,nは自然数であるから m+1≧2, n-1≧0 よって, (*) を満たす m+ 1, n-1 の組は (m+1, n-1)=(5, 7), (7, 5), (35, 1) ゆえに (m,n)=(4,8), (6,6), (342) したがって, (*) が成り立つようなm, nの組は3組あり, そのうちの値が最も小 さくなるのは m=4,n=8 組あり,これらの組の中でm である。 .(*) =1,x≦y≦z を満たす自然数 x,y,zの組をすべて求めよ。 OT)

青丸で囲んだところが、答えだと4/9になっているのですが、どうしても合わないので教えて欲しいです🙇‍♀️

44 69 5. + 65 69 F4 5 {(28-4)-1]+[(28-5)-2}"-3" (28-5)² + (21-1)² = 2 4x0²-20% + 25 + A1²-288 +49 = 9 A X²-20 X + AJ ² - 287 + 65 = 0 X² - 5 x + √²³ - 7 J + 65 = 0 4 1/1 L J 1) = ({ - P) + (3-X)

these dogs are trained to find drugs. この文章は受動態ですか？？

3行目のdealの訳し方がわかりません

It's hard for them to wait for the good things in their lives, too. For children, holidays are jor events that they look forward to, and (5) they seem to take forever to come! However, their anticipation of the event can be used to help them learn a great deal about the passage of time, and the meaning of a day, a week, a month. We can help them enjoy the waiting すぎ period and learn from it, too. Studying the calendar will help them begin to understand how time is represented graphically, and will give them a rudimentary* awareness of the relative VT --- funita of time.

2文目の下線部5からのところで訳が それはいつまでたっても来ないように思えるのだ！ と書いてあるのですが否定になってるのはどうしてですか？

It's hard for them to wait for the good things in their lives, too. For children, holidays are major events that they look forward to, and (5) they seem to take forever to come! However, their anticipation of the event can be used to help them learn a great deal about the passage of time, and the meaning of a day, a week, a month. We can help them enjoy the waiting period and learn from it, too. Studying the calendar will help them begin to understand how time is represented graphically, and will give them a rudimentary* awareness of the relative V₁ 6 本

至急です🙇‍♂️🙇‍♂️ まったくわからないので教えてください😭

v blode 2 The following paragraph talks about school uniforms. 1) Find the topic sentence and underline it. 2) Find a sentence that disturbs the unity of the paragraph and double underline it. 3) Referring to the Study Points on page 92, discuss with your partner what is needed to make the writer's opinion more persuasive. Millal In my opinion, all high school students in Japan should be allowed to wear their own clothes to school instead of having to wear school uniforms. First, if students can choose which clothes to wear every day, they can learn to express their individuality. This year there are so many great fashions for students to choose from. Second, students can learn to take noge sli 132 responsibility for their own appearance. Third, when you wear the clothes that you like, you b joyero can relax and concentrate on your studies better. For all these reasons, allowing high school students to wear their own clothes is a good way to help them become more mature.

(4)の「胞子体より配偶体が発達している」とはどのような状況なのか理解出来ないので教えて欲しいです🫠 答えは(a)コケ植物のみです、、

(2) の名称を答えよ。 4 次の(1)~(5)の特徴に該当する植物を(a)~(d)からすべて選び, 記号で答えよ。 (1) 発達した造卵器, 造精器をもつ。 (2) 胚珠が子房に包まれる。 (3) 維管束をもつ。 (5) クロロフィルaとbをもつ。 (4) 胞子体より配偶体が発達している。 LL 11...

教えてください🙇‍♂️

2 The following paragraph talks about school uniforms. 1) Find the topic sentence and underline it. 2) Find a sentence that disturbs the unity of the paragraph and double underline it. 3) Referring to the Study Points on page 92, discuss with your partner what is needed to make the writer's opinion more persuasive. In my opinion, all high school students in Japan should be allowed to wear their own lama clothes to school instead of having to wear school uniforms. First, if students can choose which clothes to wear every day, they can learn to express their individuality. This year there me vod are so many great fashions for students to choose from. Second, students can learn to take ar algood pilt responsibility for their own appearance. Third, when you wear the clothes that you like, you 08.01 au of mant can relax and concentrate on your studies better. For all these reasons, allowing high school dilidienora students to wear their own clothes is a good way to help them become more mature.