Giúp e giải hết với mn giúp e với
Giups mik vs mik cần gấp ạ 2 ảnh này là 1 bài ạ
Giúp mik làm hộ bài được không cần nộp gấp 5 sao cho bài trả lời tr
Bài 1:(2 điểm ) Xếp các đơn thức sau thành từng nhóm các đơn thức đồng dạng : 3 5 x 2 y ; 2 1 xy2 ; x2 y ; –2xy ; – 2 3 xy2 ; 5 2 x 2 y ; –2xy2 ; xy ; 4 1 xy2 . Bài 2:(2 điểm). Cho biểu thức B = 3 5 x 4 y 2 – 4 3 x 4 y 2 + x4 y 2 . Tính giá trị của biểu thức tại x =1 và y = 3. Bài 3:(3 điểm). a) Tìm đơn thức C biết : C – 2x2 y z = –7x2 y z. b) Cho các đơn thức sau: M = –2x 3 y 4 ; N = 4 1 x 3 y 4 ; P = 4x3 y 4 . Tính M +2N – 3P.
II. TỰ LUẬN (7 điểm) Bài 1:(2 điểm ) Xếp các đơn thức sau thành từng nhóm các đơn thức đồng dạng : 3 5 x 2 y ; 2 1 xy2 ; x2 y ; –2xy ; – 2 3 xy2 ; 5 2 x 2 y ; –2xy2 ; xy ; 4 1 xy2 . Bài 2:(2 điểm). Cho biểu thức B = 3 5 x 4 y 2 – 4 3 x 4 y 2 + x4 y 2 . Tính giá trị của biểu thức tại x =1 và y = 3. Bài 3:(3 điểm). a) Tìm đơn thức C biết : C – 2x2 y z = –7x2 y z. b) Cho các đơn thức sau: M = –2x 3 y 4 ; N = 4 1 x 3 y 4 ; P = 4x3 y 4 . Tính M +2N – 3P.
Giúp mình làm câu này với mấy bạn .
Làm giúp mình bài 1 nhé, trừ câu a ra
giúp mk vs các bn mk hứa trả 5 sao vs cảm ơn
find the word which has a different sound in part underlined 1/ a.express b. exciting c. expensive d. excellent 2/ a.coffee b. see c. agree d. free 3/ a. city b. cathedral c. central d. cinema 4/ a. treat b. clean c. great d. beach
Mary joined the Ho Chi Minh Communist Youth Union_____ she wanted to increase her circle of friends. A. because B. because of C. owing to D. due to 2. We had to go to the restaurant ______ the kitchen was flooded. A. due to B. because of C. owing to D. because 8. We had no electricity during the storm. We had to use candles. A. We had no electricity during the storm as we had to use candles. B. We had no electricity during the storm because of we have to use candles. C. We had to use candles, as we had no electricity during the storm. D. We had to use candles because we had no electricity during the storm. 18. It was easy to deliver the letter, _______ the sender had written the wrong address on the evelop. A. even though B. because of C. despite D. in spite of he windows were all open. A lot of mosquitoes came into the room. A. The windows were all open as a lot of mosquitoes came into the room. B. The windows were all open since a lot of mosquitoes came into the room C. Because a lot of mosquitoes came into the room, the windows were all open. D. Because the windows were all open, a lot of mosquitoes came into the room. 11. We were not surprised at what happened ______ we knew what to expect. A. because B. since C. as D. All are correct 5. _________ we don’t have to study today, let’s go for a picnic. A. Because B. Because of C. Owing to D. Due to 22. Minh had a terrible headache. He went to work. A. Because of having a terrible headache, Minh went to work. B. Despite Minh had a terrible headache, he went to work. C. As Minh had a terrible headache, he went to work. D. In spite of having a terrible headache, Minh went to work. Tom always walks to school ________ he has a bike. A. Although B. Because of C. Owing to D. Due to 15. We have to refund his money ________ he has written a letter of complaint. A. because B. as C. since D. All are correct 4. _______ severe weather, the flight was delayed. A. In spite of B. Because of C. Since D. Despite 16. _______ the heat, we had to shelter under the trees. A. Because B. Despite C. As D. Due to 100. I can’t lend you any money _______ I don’t have any. A. because of B. because C. although D. due to 25. My sister will take a plane ________ she dislikes flying. A. due to B. even though C. in spite of D. despite 17. _______ his physic handicap, he has become a successful businessman. A. In spite of B. Because of C. Despite of D. Although 20. He didn’t answer the questions correctly. He is intelligent. A. In spite of his intelligence, he didn’t answer the question correctly. B. Because of his intelligence, he didn’t answer the question correctly. C. Despite of being intelligent, he didn’t answer the question correctly. D. Since he was intelligent, he didn’t answer the question correctly. 24. The students arrived late _______ the traffic jam. A. although B. because of C. though D. despite 7. Tom won’t be able to go with us to the theatre. He has to work. A. Because Tom won’t be able to go with us to the theatre, he has to work. B. Because Tom won’t be able to go with us to the theatre. He has to work. C. Since Tom has to work, he won’t be able to go with us to the theatre. D. As Tom has to work he won’t be able to go with us to the theatre. 1. _________ it was dark and rainny, I couldn’t see the road signs well A. Because B. Because of C. Owing to D. Due to.
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