Giải pt: a, 2x^2+3x=0 b, x-6x^2=0 c, 2x^2+3=0 d, 4x^2-1=0 Giúp mk nhanh nhất có thể nha cá cậu! 5*

Cho hai góc kề bù tOu và uOt', biết góc tOu = 50 độ .Gọi Ov là tia phân giác của góc tOu. Tính góc tOv. Đáp số: .....độ

Question 3: Complete the sentences with by putting the verbs in brackets into simple past or past perfect. 1. Before she (watch) ………….……….. TV, she (do)………………………. homework 2. They (go) ………………..home after they (finish) ……………………… their work. 3. He told me he (not/eat) …………………….……… such kind of food before. Question 4. There is a mistake in the four underlined parts of each sentence. Find the mistake (A, B, C, or D ) and correct it. 1.Water pollute in the lake has made the fish die. A B C D. 2. Factories don’t dump waste into rivers if the government fines them heavily. A B C D 3.The earthquake occurred at midday when many people had had lunch. A B C D 4.Hundreds of houses destroyed after a tornado hit the small town of Texas. A B C D

miêu tả về bà ko chép nha tố cáo đó

Giải giúp em với em k biết cách làm

Giúp mình mấy phần gạch màu cam nhé thanks

I was really tired . Therefore, i try my best to do this work Lỗi sai ở đâu hả các bạn?

cmr: nếu tia Ax có A trên (O) và tạo với dây AB góc BAx=1/2 số đo cung AB thì Ax là tiếp tuyến (O) tại A

PRACTICE EXERCISE 1: Use the correct form of verbs in brackets. 1. In all the world, there (be) __________ only 14 mountains that (reach) __________above 8,000 meters. 2. He sometimes (come) __________ to see his parents. 3. When I (come) __________, she (leave) __________for Dalat ten minutes ago. 4. My grandfather never (fly) __________ in an airplane, and he has no intention of ever doing so. 5. We just (decide) __________ that we (undertake) ____________ the job. 6. He told me that he (take) __________ a trip to California the following week. 7. I knew that this road (be) __________ too narrow. 8. Right now I (attend) __________ class. Yesterday at this time I (attend) __________class. 9. Tomorrow I'm going to leave for home. When I (arrive) __________at the airport, Mary (wait) __________ for me. 10. Margaret was born in 1950. By last year, she (live) __________on this earth for 55 years . 11. The traffic was very heavy. By the time I (get) __________to Mary's party, everyone already (arrive) __________ 12. I will graduate in June. I (see) __________ you in July. By the time I (see) __________ you , I (graduate) __________. 13. I (visit) __________ my uncle's home regularly when I (be) __________ a child. 14. That book (be) __________ on the table for weeks. You (not read) __________ it yet ? 15. David (wash) __________ his hands. He just (repair) __________ the TV set. 16. You (be) __________here before? Yes, I (spend) __________ my holidays here last year. 17. We never (meet) __________ him. We don't know what he (look) __________ like. 18. The car (be) __________ ready for him by the time he (come) __________tomorrow. 19. On arriving at home I (find) __________that she just (leave) __________a few minutes before. 20. When we (arrive) __________ in London tonight, it probably (rain) __________. 21. It (rain) __________ hard. We can't do anything until it (stop) __________ 22. Last night we (watch) __________TV when the power (fail) __________. 23. That evening we (stay) __________up to talk about the town where he (live) __________for some years. 24. I (sit) __________down for a rest while the shoes (repair) __________. 25. Half way to the office Paul (turn) __________round and (go) __________back home because he (forget) __________to turn the gas off. 26. London (change) __________a lot since we first (come) __________ to live here. 27. While we (talk) __________on the phone the children (start) __________fighting and (break) __________a window 28. He used to talk to us for hours about all the interesting things he (do) __________ in his life. 29. You know she (stand) __________looking at that picture for the last twenty minutes. 30. I (spend) __________ a lot of time travelling since I (get) __________this new job. 31. When we (be) __________ at school we all (study) __________Latin. 32. When I (meet) __________ him , he (work) __________as a waiter for a year. 33. After he (finish) __________ breakfast he (sit) __________down to write some letters. 34. She (have) __________a hard life, but she's always smiling. 35. I think Jim (be) __________ out of town. EXERCISE

mik cần gấp bạn nào giỏi hơn giảng hộ một tí được ko ạ ;__; pleass mik gấp lắm