C1: tam giác ABC có góc A= 90 độ, góc C= 60 độ, AB = 8cm , độ dài cạnh AC là : A. 8√ 3 / 3 B. 24 / √ 3 C. √ 3 / 24 D. 3 / 8√ 3 C2: tam giác ABC có góc B= 45 độ, góc C= 60 độ, đường cao AH , HB = 5Ccm, độ dài cạnh AC là: A. 10 / √3 B. 1 / √3 C. 10√37 cm D. √37 cm

A). (x -3 ) . (y+5)=-17 B). (X +1).(xy-2)=11

Vẽ anime full màu and full line Cute nha Tradi not digi

nêu cấu trúc của thì tương lai hoàn thành tiếp diễn thank mn nha

cac ban giup minh voi :dựa vào bảng 32.2/SGK trang 119,nhận xét tình hình phân bố cây công nghiệp lâu năm ở Đông Nam Bộ.Vì sao cây cao su được trồng nhiều nhất ở vùng này

Vẽ anime or chibi Full line, full màu Xấu=bc

Trong thi nghiệm Y-âng, khoảng cách giữa hai khe a=0,5mm; khoảng cách từ hai khe đến màn D=2m. Dùng ánh sáng có bước sóng 0,5m làm thỉ nghiệm. Tại vị trí cách vân trung tâm 7mm là vân sáng bậc mấy (hoặc vân tối thứ mấy)?

Cho∆ MNP có MN<MP.Gọi I là trung điểm của NP. Trên tia đối của tia IM lấy điểm E sao cho IE=IM a, C/m: PE //MN b, So sánh NMI và IMP c,C/m: MN+MP>2MI Giúp vs nha, yêu các bn!!!( ˘ ³˘)♥

BỎ 1 HOẶC 2 BÀI TRỪ BÀI 5 VÌ ÍT ĐIỂM :(( Exercise 1: Fill in the blank. 1. When he was a small, he used to (walk)……………………….…to school. 2. Lan isn’t used to (live)………………..…..…....on her own. The house feels quite empty. 3. Are you used to (live)……………….……….………in your new house ? 4. They did not use to (live)………………………. in a cold climate. 5. She used to (be)………..…..… a teacher. She is used to (work)…………….…….on weekend. 6. Since he retired from his job, He isn’t used to (have)…………….……..nothing to do all day. 7. In her last job, she used to (wear)………………….. a suite and tie. Now she wears jeans. 8. Minh was just getting used to (wear)………….……………..glasses. 9. She is terribly nervous. She is not used _______________ (speak) to a large audience. 10. Did he use to_______________________ (work) in a bank? Exercise 2: Rewrite the following sentences. 1. When he was a boy, Minh often go swimming in the river. - When he was a boy, Minh used........................ 2. Mai often stays up very late now. - Mai is.......................................................................................................... 3. Did you always go to school on foot when you were a student? - Did you use................................................ 4. Does he always drive on the left now? - Is he..............................................................................................? 5. Do you often stay with your grandparents now? - Are you ............................................................................? 6. Where did he always live when he was small? - Where did he use ...............................................................? 7. They often worked for a bank when they lived in the city. - They used............................................................ 8. She always drives her own car to work. - She is............................................................................................. 9. What did you usually do when you were in HCM city? - What did you use ...............l................................. 10. He always gets in troubles with his friend now. - He is.............................................................................. Exercise 3: Đặt câu hỏi “How” cho từ gạch chân. 1. Her mother is 1 meter 60 tall. - …………………………………………………………………………….. 2. Mr Long is 80 years old now. - ……………………..………………………………………………………. 3. He is 1meter70 tall . - …………………………………………………………………………………………. 4. It is 50 kilometers from here to the park. - …………………………………………………………………… 5. Huyen is 45 kilos. - ………………………………..…………………………………………………………. 6. That book costs 100 thousand dong. - …………………………..……………………………………………. 7. The Great Wall is 5 meters long. - ……………………………….…………………………………………… 8. The man was 60 years old. - ………………………………………..……………………………..…. 9. This river is 1200 kilometers long. - ………………………………………………………………………. 10. She travels to Ha Noi by bus. - …………………………………………………………………………… 11. These shirts are 500.000 dong. - ……………………….………………………………………………….. 12. They need two litters of milk - ……………………………………………………………………. 13. The man will stay there for two days. - .......………………………………..…………………………….. 14. That woman has 3 children - ………………………………………….…………………………………… Exercise 4. Viết lại các câu sau dùng từ cho trước. a. She often walks to school. -> Shee often goes………………………………………………………….. b. Her father always drives to work. -> Her father always goes…………………………………………………. c. She cycles to work everyday. - > She goes ………………………………………………….......................... d. They fly to Hanoi every month. -> They go……………………………………………………. e. Minh rides his bike to school every morning. -> Minh goes …………………………………………………… f. We take a bus to work every day. -> We get………………………………………………………………. g. He got to work by taxi yesterday -> He took ……………………………………………………………….. h. Do you like walking to school? -> Do you like going ………………………………………………………? i. Mr Tuan often rides his motorbike to work. -> Mr Tuan often goes ……………………............................... j. She loves walking to school everyday. -> She loves going …………………………………………… Exercise 5: Tìm và sửa lỗi sai trong mỗi câu sau. 1. She is always busy on Sunday and he is, either. 2. Both Minh and Ba likes playing sports. 3. They often go to school by foot in the morning. 4. Does she like walking to school on foot? 5. He rides her bike to work everyday. 6. Mr Hai often fly to Ho Chi Minh city on weekend. 7. He loves playing games and She is, too. 8. He isn’t interested in sport and neither isn’t his friend. 9. We don’t live in the city and they don’t, too. 10. He never travel to Hanoi by plane

Một xe lăn dành cho người tàn tật có chu vi bánh trước là 63 cm, chi vi bánh sau là 186 cm. Người ta đánh dấu hai điểm tiếp đất của hai bánh xe này. Hỏi bánh trước và bánh sau phải lăn ít nhất baonhieeuf vòng thì hai điểm được đánh dấu lại cùng tiếp đất một lúc.