至急よろしくお願いします😭😭できれば今日のお昼までに答えてくださる方を待っています＞＜ 英検2級の過去問です。(28)の答えが4なのですが、なぜそうなるのかわかりません、、どういった経緯で3人とわかるのか詳しく教えていただきたいです🙇🏻‍♀️ また、赤線部分のjoin ... 続きを読む

From: Amy Gordon To: All Customer Service Staff <customerservicestaff@g-kelectronics.com> Date: January 23 Subject: Staff changes <a.gordon@g-kelectronics.com> Dear Customer Service Staff, I hope everyone enjoyed themselves at the company party last Friday. I had a really good time. I think that the Grand Hotel was the perfect place to have it. Don't forget that some of you won prizes in the bingo games that we played. Steve Miller in the sales department says that he has the prizes, so if you won something, go and see him to pick up your prize. I have some other announcements as well today. Six new people will be joining our company next month. They've all recently graduated from college, and two of them will be coming to work with us in the customer service department. We'll have three new co-workers altogether because Kent Gardiner will also be moving to our department at the same time. He has worked in the design department at G&K Electronics for 10 years, so I'm sure that many of you already know him. There are a couple of other staff changes, too. Peter Smith, the manager of the accounting department, will be retiring at the end of next month. Peter has worked at G&K Electronics for over 40 years. There will be a short retirement ceremony for him in Meeting Room A at 5 p.m. on February 28. Also, starting next week, Rachel Martin will take six months off because her baby will be born very soon. Sincerely, Amy Gordon Customer Service Department Manager

この線が引いてあるところの変形がなんでこうなるのかわかりません

wond 3 = 11 る。 EX_ÿ = よって = =-{(4.x-2)+(4x2-2)+......+ (4x-2)} n =4.11 (x2+x2+..+x)- n 4.Xx-2 また,i=1, 2, ….…., n に対して 1 (y+y+..+yn) Sy= = yi-y=(4x-2)-(4x-2)=4(xi-x) n 2n n ·{(y₁ −y)² + (y₂−y)² + ... ¹- {₁² (x₁ - x)² + 4² (x₂-x)² + nsx"=di²+dz²+…………+dn² ≧dn2+ d² >4sx2+4sx2=8Sx2 よって n>8 nは整数であるから n≧79 = 4√ √ 1 - ((x₁ - x)² + (x₂-x) ³² + ... + (x₂-x)³²} n ニイ 4Sx 次に, i=1, 2, ….., n のうち, i=k, l (k,lは1以上n以下 の異なる整数)のみが|di|>2sx を満たすとする。 このとき dk²4sx2 d> 4s 2 = -—-—-{(x₁ - x)² + (x₂ − x) ²³ + ····· + (xn− x)²} ☆ 5 + (y₁ - y)²} 2 + 4² (x₂-x)²} 021-30= 数学 1207 [補足] 変量xのデータ からy=ax+b (a,b は 定数) によって新しい変 量yのデータが得られ るとき 平均値 y=ax+b 分散 s}=d²s; 標準偏差 8,= |a|sx (本冊 306 参照。) ←sx2 は xのデータの分 散。

三角関数の合成についてです。 ⑴⑵どちらも疑問なのですが、sinθはy軸でcosθはx軸であるのに、⑵のように、f(x)＝4sinθ−3cosθの4と−3がそれぞれx軸とy軸に対応しているのはなぜですか？ 基礎的な部分から理解できていないので、教えてくださると有難いです🙇... 続きを読む

Check! 例題 137 三角関数の合成に 次の関数 f(9) を f(0)=rsin (0+α) の形で表せ. (1) f(0)=√3 sino+cos0 Sk 考え方 sin 0 と COSOの1次式は,合成して sin だけの式にまとめる。 このとき,合成できるのは, sin も cos も同じ大きさの角(この場合は 0 ) のとき BOTOM 3²+x=ytan であることに注意する. cos a = HORDONS Dust 0 st P(√3,1) 解答 (1) f(0)=√3 sin0+cos0=rsin(0+a=√3, b=1の場合 とすると, √3 2 9 2235NF36. r=√(√3)2+12=√4=210- sina = 1/12/ より, sosy よって, f(0)=2sin(0) .*** (0-0) ast (1ERURT (2) fƒ(0)=4sin 0-3 cos 0 TDATION _r=√√4²+(-3)² = √25=5 よって, f(0)=5sin (0+α) a= (2) f(0)=4sin0-3cos0=rsin (0+α) とすると, 4 ただし, Cosa= =, = .0120 7+(-/3) ① π 61 2/24 - 2. YA S=₂0 ast sin a = - BABJ Anet- 3 est 5st+1 tes 1 Vol.1 F 581 mm sina= * " a 0√3/√3x cos a=- 0 2 a=4,b=-3 の場合 YA a >0>,0>0 -3 a √a²+ b²¹ 6 √a² +6² 5、 XC P(4,-3)

(2)がよく分かりません。教えてください🙇‍♀️

225. 耐電圧 電気容量 4.0μF, 耐電圧 3.0 × 102V のコンデンサーAと,電気容量 1.0μF,耐電圧 6.0 × 102V のコンデンサーBがある。 (1) AとBを並列に接続したときの全体としての耐電圧 V1 [V] を求めよ 。 (2) AとBを直列に接続したときの全体としての耐電圧 V2 〔V〕 を求めよ。 TH

031 4が誤りです どう正せばいいのか解説お願い致します🙇‍♂️

2口028 It is o believed that the Earth's average temperature ohas been risen by 0.6°C (2) account for ro ③ account to D account of gaibno! baim woy brim sror 8rom avab loordoa aowe papoe JG pace fo u jgbb 2 ce 1880 because of emissions of greenhouse gases ofrom human activity. く学習院大) (大央中 OSt people don't realize there is @ no real advantage to ③ taking more than ne o recommending amounts of vitamins and minerals. 口029 boor pe comp9 の bol く東京都市大) 3口030 Located in the suburbs of Tokyo and standing at 599 meters beyond sea ranks as ia three-star location in the famous Michelin 〈南山大) の level, Mt. Takao 大 sightseeing guide. の X meters abore Sea level F調老 トCS 4ロ031 のBy the time the guests o arrive, the door o will have been opened to let oin them. 〈立教大) 06

全く分からないので教えてください🙇🏻‍♀️🙇🏻‍♀️

Chapter 3 3 下線部には文法的語法的な誤りが1つある。 指摘して正せ。 4分 各2点 1. の When I open the door, he was 。sitting at the desk, 。 the letter lying open , before him. の (法政大) C bonfder never seen you。wear it before.” 2. “When。have you bought that sweater? I've “I bought it last week. Do you like 。 it?" (大阪樽蔭女子大) onalq sdt oaud anuod sinw of bert s 3. She 。is resembling her mother。 in appearance, a but not in personality. (立命館大) (2 ono er a1as d We're visiting Tokyo Disney Resort this 。 Coming Saturday. I hope this weather held till the weekend. 4. の loorse o aurd (明海大) ayaid ym seusコad 5. oam living in Osaka 。 for over a year now, but I。 still don't know 。my way around. id md! I 2 ni sToris (立命館大) 6. Peter。hasn't gone to work yesterday; he。wasn't feeling 。well and。took the day off. or w Tod nO の 3 hig shit ort Toordoe his aucne の TSa (俳教大) 7. Jane was drer with Paul because he 。didn't notice she 。 has changed her hairstyle. angry の 2 (東邦大·改) i sberm ② yd vanui sbm ③ yd 1o nui gnblem (n It was pos 8. You can watch TV。when you , will have finished。doing your homework-but not の 3 before! (学習院大) 語いイディオム」 空所に入れるのに最も適当なものを1つずつ選ベ。 )abprm asw 2.5分 各2点 Tisw 2nitigw ③ 1. Smoking is often condemned because of its bad effects ( ) people's health. However 3) on ① in 2 of (4 to (立命館大) 2. Hi! It's me. I'm sorry I'm late. I'm running ( ) the direction of the ticket gate. Ill be with you in a minute. 0 in (大a日) (センター試験) 2 of 3) to の within same hotel ) for personal computers has dramatically increased recently. の demand 3. The ( sC (愛知学院大) (大) ① importance ② supply ③ dependence That gentleman ( ① putting on black ② wearing in black ③ dressed in black ④ wears black 4. )is my English teacher, Mr. Smith. (東京薬科大) 01 bhow 5. Is this your first visit ( ) America? (日本大) 1 to ② of 3 in 4 at

Some Chinese〜のところで、答えは出土することもある。とありますが、have even yieldedなので生み出したこともある。が正しいのではないですか？

Dy birds that had dinosaur features> and of dinosaurs that wère close to birds, /Some Chinese rèmains from the beginning of *the 15 Cretaceous period, approximately 120 million years old,/have even yielded the fossils of animals that may have been dinosaurs with foothona

これあってますか?

0700 1 120-11100-1に 80 I ORDO 1y0| 1001 V0

答えが無くて、わかるものだけでも良いので教えてください。 丸ついてるのは関係ありません。

1. Most of the people who listened to the band/seemed with their performance. (A) excitement (B fun C) Ampressed D moving 2. Her father offered to turn down the radio/so that she could concentrate on her homework, but she said she didn't bother (B)/matter (C) ymind D need 3. They prefer to keep their old houses rather than building new ones it is very hard ánd expensive to maintain older ones. (A)/because even though on the contrary D) regardless 4.A more advanced model (of this computer SOOn. (A) has been introduced B) is going to introduce (C) is introducing D)/will be introduced V 5.I wish you making that noise. are going to stop B)had better stop (C) have stopped (D) would stop

英文に書きかえて欲しいです‼︎お願いします‼︎

olubordoa sdi (70 \ai 1()の指示に従って, 英文を書きかえなさい。なさい。 1) Those students are my classmates. (否定文に) oft. 2) The girls ate the cakes on the table. (否定文に) SES 3) The children are having lunch near the panda cage. (下線部を問う疑問文に) 4) Chris brought these boxes into the classroom. (下線部を問う疑問文に) nitesm e bobaen 5) You must not make so much noise late at night. (「~してはいけない」という命令文に) こ