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ĐƯờng thẳng x'x cắt hai đường thẳng y'y,z'z tại A và B sao cho góc xAy=góc xBz=90 a) Vẽ tia phân giác At của góc xAy Vẽ phân giác Bu của góc xBz. b) Tại A vẽ Av vuông góc At. Qua B vẽ phân giác Bm của góc ABz' Chứng minh Av song song với Bm. Giúp mình nhanh nha

hình chiếu đứng, bằng, cạnh của vật thể B ( SGK CN 8 - 21 )

tam giác ABC có BC=15cm,góc B=60 độ,góc C=40 độ.Tính đường cao AH,cạnh AB,AC mn giải lại giúp mình vs.ko spam nhá

ý nghĩa tác phẩm " Tôi đi học " của Thanh Tịnh

Cho đường thẳng d: 4x - 3y + 1 = 0. Tìm ảnh của đường thẳng d qua phép tịnh tiến theo vectơ v(1;-4) Các bn giúp mình với

Exercise 1: Because of – so - because – since – as 1. ____________ it was dark and rainy, I couldn’t see the road signs well. 2. The kitchen was flooded, ____________ we had to go to a restaurant. 3. I can’t lend you any money ____________ I don´t have any. 4. ____________ severe weather, the flight was delayed. 5. ____________ we don’t have to study today, let’s go to a picnic. Exercise 2: Rewrite the sentences using the connector given in brackets. 1. Paul was an hour late. He missed the train. (because) => ________________________________________________________________ 2. I borrowed your lawn mower. You weren’t using it. (as) => ________________________________________________________________ 3. We had no electricity during the storm. We had to use candles. (so) => ________________________________________________________________ 4. He needed a good mark. He studied hard for the test. (Since) => ________________________________________________________________ 5. It’s raining. We have decided to stay at home. (As) => ________________________________________________________________ 6. Tom won’t be able to go with us to the theatre. He has to work. (because) => ________________________________________________________________ 7. The windows were all open. A lot of mosquitoes came into the room. (Consequently) => ________________________________________________________________ 8. We knew what to expect. We were not surprised at what happened. (Therefore) => ________________________________________________________________ 9. Would you consider it? He asked nicely. (since) => ________________________________________________________________ 10. Mary joined the school theatre. She wanted to increase her circle of friends. (as) => ________________________________________________________________ 11. I don’t know the way. I’ll take a taxi. (as) => ________________________________________________________________ 12. I´ve forgotten my password. I can’t read my email. (so) => ________________________________________________________________ 13. I got home late. There was a flight delay. (because of) => ________________________________________________________________ Exercise 3: Rewrite the sentences, using a suitable connector. (Nối 2 câu lại với nhau sử dụng 1 từ nối phù hợp.) 1. Sue didn’t put on her sweater after the race. She got a cold. => ________________________________________________________________ 2. I turned the heating on. It was very cold. => ________________________________________________________________ 3. The lamp didn’t work. I took it back to the shop. => ________________________________________________________________ 4. He doesn’t drive. Dave always travels by train. => ________________________________________________________________ 5. You are going by the store on the way home from work. Would you mind picking up some trash bags? => ________________________________________________________________

(x+1)^2>= 1^2 tại sao lại có 2 trường hợp x+1>=1 hoặc x+1=<-1

Lần này ko lỗi nữa nhé (( : Bài 1 : 30abc : abc = 241 Bài 2 : Tính tổng phân số bằng cách hợp lí nhất: $\frac{1}{2}$ + $\frac{1}{6}$+ $\frac{1}{12}$+ $\frac{1}{20}$ +$\frac{1}{42}$ ☆🐙 ⓒĦί ŦＩế𝓽 𝓝𝔥๏𝔸 🐍🐧

Khoanh dap an dung nhat 1/You can..........your sister to our party tonight. A/bring B/carry C/take D/get 2/You need more exercise, so you should.........golf. A/carry out B/take in C/turn up D/take up 3/I like that photo very much. Could you make an...........for me? A/increase B/enlargement C/expansion D/extension 4/His roses won the first...........in the local flower competition. A/prise B/award C/cup D/reward 5/I got impatient waiting for my turn to............... A/go out B/set out C/come out D/work out