なぜ、右の数直線のようになるのですか？

第1章 数と式,集合と命題 19 重要例題3 不等式の整数解 不等式*- 1 13 11 3 を満たす整数xは 個ある。 3 ア また,a>0のとき, 不等式xー-<aを満たす整数xが5個であるようなa き 3 の値の範囲は イ 号である。 <aS ウ オ POINT! 不等式の解 →数直線上で考える。 解答 -号から -ュー 1 x一 3 13 13 1 13 →X|<A→ -A<X<A 3 3 3 1 →基4 各辺に を加えて 3 14 -4<xく- 3 これを満たす整数x は -3, -2, -1. 0. 1. 2. 3. 4 の ア8個 ←-4は含まないことに注意。 -<aから -a<x- 1 3 3 を加えて 1 各辺に 3 +a 3 ャーa+ 3 --a+くめくの+とし 3 3 これを満たす整数xが5個であ るのは,右の数直線のようになる ときである。 ないのがポイント。 1 を中心に両側にaずつ 3 -3/-2 -1 0\1 2/3 * +a のびている。一 は0と1 ーa よって -3 7->0-と の の間にあり,0に近いから, かつ 2<+as3 ;の左側に3つ (0, -1, 3 LO- 0-2), 右側に2つ(1, 2) いからい のから -3--a<-2-3 ゆえに<as 1 整数を含むことになる。 7 10 3) 3 3 A 5 8 ゆえに<a 3 エ8 オ3 2から 2- <as3- 3 3 イ7 ウ3 -3③ のかつのから <as TCHART 5 3 8 3 10 x 3 数直線を利用 →基4 練習 3 2つの不等式 |x-1|<2 (1) 不等式①の解は アイ<x<■ウである。 (2) ①, ② をともに満たす実数xが存在するようなんの値の範囲はk<I]である。 (3) のを満たす実数xが, すべて ②を満たすようなんの値の範囲はん<[オカ]であ kを実数の定数とする。 0, 5x+3k>2(x+2k+1) ②がある。 (4) ①, ② をともに満たす整数 xがちょうど2個存在するようなkの値の範囲は キ|<k<_ク]である。 る。 ep0 0U |数と式、集合と命題 7_3

英語の宿題です。 答えがないので、答え合わせがしたいです。 ぜひ回答いただけるとありがたいです。

Fill in the blanks below with words from this box: season heat air conditioners insects cool ice cream cone watermelon beach sunglasses shorts juicy ice cubes weather sandals berries keep butterflies fishing hat long fans sightseeing mosquitoes lemonade vacation camping 1. Summer Summer is the, In summer, people try to escape the of .days and hot by turning on their or going to the and Summer Food 2. One way to off is to eat something cold such as an Another favorite summer food is which is big, green, and glass of And, of course, many people enjoy a cool to keep it cold. with a few Summer Clothing 3. In the heat of the summer sun, it is important to dress properly. It is a good idea to to protect your eyes. instead of wear a on your head and If you want to cool, you can wear pants and put on your feet. mer Vacation4. nmany countries, kids get a months. This isa good time to go from school during the summer Swimming,. or Summer Animals 5. Summer is a good time for animals. There are lots of to eat on bushes. As well, many are about, making tasty treats for birds and spiders. Some of these insects such as look pretty in the garden. Unfortunately, others such as, make a tasty treat out of people.

176と177のどこが間違えているのかが分かりません。 解説とともに教えて頂きたいです。 また、このような正しく直す問題が苦手なのですがどのように克服すれば良いかアドバイス頂けたら嬉しいです。 よろしくお願い致します🙇

OTmk Emige DO 90un TATH入L 00ol odi, 口175 Science would make( much less progress / the computer networks / to (センター本試) (国土協) exchange / used by many scientists / without) ideas. 2 大 ) abusger & adreod の nit My old 正誤 4 下線部には誤りが1つある。指摘して正しく直しなさい。 dabga yasM A 8a計 How dotuesga 8 Ma dd ynidionbe Cth of bnidng 目標時間:5分>1問 1分 (大) 176 Aristotle, a philosopher of ancient Greece, who had one of the world's 2 greatest mind, taught that only by knowing the origin of something can it 3 の 大 be truly understood. (o preparingg @ preparing Jwo (立教大) apared andand

写真に it has been a tradition for a long time for young children to open a lamonade stand... という文があるのですがなぜ期間のfor a long timeがfor children ... 続きを読む

Friday, Saturday and Sunday a week before Father's Day? // In the United States / they have from these lemonade sales / is sent to a charitv/ called Alex's Lemonade Stand Foundation lemonade stand / in their front yard in summer. // They sell glasses of lemonade to thirsty “Lemonade Days." // It has been a tradition for a long time / for young children to open a "egnoors 7 to earn some pocket money. //.But “Lemonade Davs” are different. // Tne money

特に最初の4問が分かりません。 疑問文についてのgrammarcollectionです。

19.疑問文 Practice Practice 「英文中の空所に入る適切な語または語句を選択肢から選びなさい。 ロ 1. What we do does not define () we are. 2who ③ when の how (成露大 Owhom ) person is driving to London? 3 which ロ 2. Could you tell me ( のwho (立命館大) Owhen 2where )made you try again? 2 When ロ 3.( の Why 〈大阪経済法料大) 3 Where O What )it is. ロ 4. I founda sock on the floor, but I don't know( 2who ③ that ④ whose (亜細亜大) O who's ロ 5.()on earth did you go there last night? 3 Who O Where 2 What ④ Why (東京工芸大) ロ 6. The robber disappeared completely. The police didn't know ( ④ who ) to look. 身185 ① that 2what 3where (武蔵大) ロ 7.“How( ) do you go swimming?" “Two or three times a month." 身186 の far の long 3many の often (金沢工業大) ロ 8.“How( ) will it take this parcel to reach France?" “First class mail takes about one week." 時186 O about (2) Come long much (学習院大) ロ 9. Do you know ( ) since the financial crisis started? I hope work-sharing becomes nion popular in Japan. 身186 O how many people have been laid off 2 how often people have been called for 3 how fast people have been taken out ④ how long people have been set up (文教大) ロ 10. Do you know how ( ) in the evening the show will begin? 時186 O early 2 fast 3 quickly の rapidly 〈神奈川工科大) ロ 11. “How( ) will the train come in?" “In a quarter of an hour." 身186 O often 2 Soon 3 long ④ much (麻布大)

1から4番の問題がわかりません😭 解説も含め、onc/itの用法を教えて頂きたいです。 教科書を読んだものの、理解が出来ません。 宜しくお願いします。 出来れば早めにお願いしたいです。

| Practice 1英文中の空所に入る適切な語または語句を選択肢から選びなさい。 1. Although his parents wanted him to become a politician, he had no intention of becomino 167 Oit 2 him (3) one ④ he 〈千葉工業大) 167 2. This computer is too old to run the software. I must get a newer ( O that 2 one 3 other any 〈国士舘大) ) on which she was sitting. 1ois 4 what ロ 3. He moved his chair nearer to the ( 167 bsd ounA 3 that Toerod E O it 2 one (東京理科大) 19dの e19d S 4. This book is not as exciting as ( )Iread last year. le 000 167 ()a one のit 3 the one which (共立女子大) 168

①の英訳をお願いします🙇🏻🙇🏻🙇🏻 単元は比較級、関係詞ですっ

She is from Takarazuka, 4 Put the Japanese sentences into English. 1見れば見るほど、彼はその絵が欲しくなった。 2ここは、モナリザ (the Mona Lisa)が展示されている美術館だ。 ●exhibit = display 「~を展示する。 3そういうわけで、 徳島は毎年8月に混雑する。 4このようにして、油絵 (oil painting) は描かれる。 下線部分を言い換えて、 自分の好きな絵や写真について、 実物を見せながら "Show and Tell" の形 TRY で説明しましょう。 This is my favorite photo. It shows the sunset on Lake Shinji in Shimane which I think is one of the most beautiful sunsets in Japan. 11

至急お願いします

|6 不等式 |ab +cd|sva?+c?Vb?+d? を証明せよ。また,等号が成り立つのはどのよう 2 なときか。

至急お願いします！

6不等式 |ab+ cd|<Va'+c°V6°+d° を証明せよ。 また, 等号が成り立つのはどのよう なときか。

最後の一文がなんでmeなのか分かりません､､､ I(i)じゃダメなんですか？

[2 The student had a point. Her generation was indeed different. The world was different. Ina single generation, it had changed utterly. (Not so very long agg.(when I myself had gone off to collegg, I'd ( 3 ) the familiar world behind and lived on campus, body and soul. Although there were weekend parties, it had been very much a monastic* experience. Separated from home, Td ( 4 ) one layer of self after anotherpand, ( 5 ) on new ideas and new practices, and (by the end of those four year$ I had ( 6 ) to become someone the younger me never managed would have ('mGpig piged