Cho tam giác ABC có A=100 độ, B=40độ. Vẽ tia Ax là tia đối của AB, vẽ tia Ay là tia phân giác của góc xAc CMR:Ay//Bc //là song song nha ko cần vẽ hình đâu

Giúp mình với ạ.🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺

Rewrite the sentences: 6.She said that she was reading a science fiction book about life on Venus.  She said: “I …………………………………” 7. Someone has stolen by bicycle..-> My bicycle ……………………………….. 8. If he doesn’t work hard, he will not pass his exam. -> Unless ……………………………………………………………………………….. 9. I don’t have free time , so I can’t go some where. -> If I …………………………………………………………………………. 10. Vy ate a lot last night , so she had a stomachache. -> Because.............................................................................................................

Cách giải bài toán khó nhất hệ mặt trời

I. Chia động từ ở thì quá khứ đơn 1. I _________________ (work) in a bank for ten years. 2. Where _________________ (you / live) when you were young? 3. She _________________ (not / study) French at university. 4. He _________________ (travel) through the Middle East last year. 5. _________________ (they / visit) the Louvre in Paris? 6. She ________________ (not / watch) TV yesterday. 7. We _________________ (buy) a new car last weekend. 8. Where _________________ (you / teach) before you came here? 9. He _________________ (not / think) that he was right. 10. I _________________ (cook) steak last night. 11. _________________ (Lucy / read) ‘War and Peace’ at school? 12. She _________________ (not / write) to her grandmother. 13. We _________________ (have) a computer when I was a child. 14. Where _________________ (you / go) on holiday? 15. I _________________ (love) ice cream when I was a child. 16. They _________________ (not / meet) yesterday. 17. _________________ (she / swim) in the sea in Greece? 18. We _________________ (not / play) tennis yesterday because it was raining. 19. He _________________ (try) to lift the box but he couldn’t. 20. What _________________ (you / eat) for lunch?

a)Tìm n thuộc Z biết 2n^2-n+2 chia hết cho 2n+1 b)làm phép chia và tìm x biết x^3-3x^2+5x+a chia hết cho x-2. MẤY BẠN LÀM VỞ VÀ GHI PHÉP CHIA GHẾ RA GIÚP MÌNH NHÉ

Rewrite the sentences: 1.Volunteers have given out food and blankets to homeless people. Food and blankets …………………………………………… 2.Did the storm destroy the whole village? The whole village ………………………….. 3.“They are doing an experiment” He said that…………………………. 4.“You have to sign the paper again” She told me that……………………………. 5.Kien said that he had missed the train. Kien: “I ………………………..”

Use the correct form of the verbs 1. They often (visit) ________ their parents in the holidays. * 1 điểm 2. We (speak) _______French at the moment. * 1 điểm 3. I (watch) _________TV about 3 hours a day. * 1 điểm 4. My family usually (go) ______ to the movies on Sunday. * 1 điểm 5. Look at the girl! She (ride) ______a horse. * 1 điểm 6. We (play) ________tennis now. * 1 điểm 7. Minh sometimes (practise) ______ the guitar in his room. * 1 điểm 8. you (like) ________ chocolate ice cream? * 1 điểm 9. I really like (cook )____ * 1 điểm 10. Hung can’t answer the phone because he (take) ____a shower. * 1 điểm 11. She ( already eat ) this kind of food * 1 điểm 12. How long Mr. Nam ( stay)____here ? * 1 điểm 13. They are fond of ( watch) ____TV * 1 điểm 14. She ( go)______to Hue last week * 1 điểm 15. Where you ( go ) ____yesterday ? * 1 điểm

3x-3y-x^2+2xy-y^2 phân tích đa thức thành nhân tử

Verb form 10. After she (finish) ……. Breakfast, she left the house. 11. If we (recycle) ……… more, we (help) …… the Earth. 12. Factories (not, dump)…………. waste into rivers if the government (fine) ….. them heavily. 13. If you (be ) ……….. the president, what you (do) …………. to help the environment? 14. They get sick so often. If they (exercise) ……. more, they (be) ………… healthier. 15. Ngoc’s mother is unhappy. If Ngoc (tidy) ….. her room everyday, her mother (not, be) ………. so upset. 16. If Billy (live) ……… .in Mexico, He (speak) ……..Spanish 17. While Bob (sleep)………the phone (ring)………. 18. This house ( build )……..… in 2000.