Cho tam giác ABC vuông tại A, AB/AC=5/6 biết đường cao AH = 30cm. Tính HB, HC.

A=2x^4-10x^3+3x^2-3x+2 và B=2x^2+1 tính thương Q và dư R sao cho A=B.Q+R

ai giải đc đr nhanh cho hn lun Cho tam giác ABC cân tại A , AH vuông góc BC , BK vuông góc AC CM : 1/BK^2=1/BC^2+1/4AH^2 gọi ý dung HQ talet nhé

A. Verb form 1. The animals in the zoo ________ regularly by the zoo-keeper. A. feed B. is fed C. are fed D. were fed 2. Tim felt happy when he ________ the first prize of the contest. A. awarded B. is awarded C. was awarded D. has been awarded 3. Rice ________ in many tropical countries in Asia. A. grows B. is grow C. is grew D. is grown 4. Harry ________ well since he ________ on a diet. A. hasn’t looked/ goes B. hasn’t looked/ went C. didn’t look/ goes D. didn’t look/ went 5. She ________ to the theater by the Greens. A. often takes B. often took C. often is taken D. is often taken 6. ________ your house ________ next year? A. Will / be rebuild B. Will / be rebuilt C. Will / rebuild D. Will / rebuilt 7. Must this test ________ on time? A. finished B. to finish C. is finished D. be finished 8. Jane would rather ________ a book in the evening. A. read B. to read C. reading D. reads 9. ________ English ________ all over the world? A. Are / learnt B. Is / learned C. Are / learn D. Is / learn 10. My car ________ yet. A. hasn’t repaired B. haven’t repaired C. hasn’t been repaired D. haven’t been repaired 11. More and more people ________ there is a pollution problem in more and more places. A. realize B. realized C. is realized D. are realized 12. It’s cold outside. Don’t forget ________ your scarf. A. take B. to take C. taking D. took

Tui cần gấp chỉ tui với tui vote 5 sao và tim cho

Giúp mình mấy câu này với ạ !!!!!!!!!

mn giúp mk làm ý này với ( ko cần làm ý c)

Calli chữ Mood Trên paint or medibang Có đổ bóng + trang trí Chữ 2 màu nâu và tím

Bài 9 : Tính nhanh a) 1/2 : 3/4 b) 9/7:3/4

Recently, we made a trip to visit Dong Ho village with a desire to meet the old artisan - Nguyen Huu Sam. Just when we arrived at the dyke in the village and talked with the - .Hagers about the artisan, they immediately told us about him. The old house owned by the artisan is situated in a long alley of the village. On the walls: the house there are many folk paintings in different genres, from daily life paintings to mdscape paintings shown in a set of “four seasons”. Mr. Sam told us about his past. When he was three years old, r e was instructed in the craft of making Dong Ho paintings by his rather. At five, he could help his father apply the Dong Ho raintings, and learn how to print the paper with proper colours. At seven, he was able to draw with a pen and make the most difficult samples. Years went by and the soul of Dong Ho folk raintings has kept seashell powder paint to the poonah-paper. In the 1940s, this craft flourished. At that time, he was assigned by his parents to take the paintings to the market for sale. Mr. Sam said that 17 families in the village have been engaged in making Dong Ho paintings. Artisan Sam has always been devoted to the making of Dong Ho paintings and has waited for opportunities to restore this traditional craft. In 1967, when the local authorities assigned him to restore the traditional genre of Dong Ho folk paintings, he gathered 50 villagers with professional skills and collected hundreds of woodblocks to establish the Dong Ho Painting Cooperative. Thanks to his efforts, such famous paintings as "Rat’s wedding”, “Rooster”, “Scene of jealousy” and “Writing verses about precious flowers” have been revived. Dong Ho paintings have been available in many parts of the world such as Japan, France, Germany, Singapore and the United States. 36. The themes of Dong Ho paintings are about . A. landscapes B. weddings A. various aspects of life D. animals and flowers 37. In order to make Dong Ho paintings, we need seashell powder paint, the poonah-paper and . A. proper colours B. water C. markets D. woodblocks 38. From paragraph 3, we can infer that when Mr. Sam was very young, he mostly helped his parents by . A. applying the woodblocks with proper paints and pressing them on sheets of paper B. applying seashell powder to make various paints for painting making C. drawing with a pen and using proper paints to make many copies of paintings D. collecting and taking the paintings to the market for sale 39. All of the following can be inferred about the artisan - Mr. Sam — EXCEPT that . A. he is popular in the village B. he could paint when he was three C. he keeps a collection of Dong Ho paintings in his house D. the local authorities tried to revive the traditional craft 40. In the writer’s opinions, the future of Dong Ho paintings is . A. international B. concerning C. optimistic D. negative