Giúp mình giải với ạ 😭😭😭😭😭

(2x-1)(3+x)≥0 giải bất phương trình ạ :<

Mixed practice : 1. Why don’t study hard ? If………………………………………………………………………….. 2. Keep silent or you’ll wake the baby up.If …………………………………………………………. 3. I don’t know the answer, so I can’t tell you. If…………………………………………………….. 4. We got lost because we didn’t have the map. If ……………………………………………………. 5. My friend was so late, so he missed the train. If …………………………………………………… 6. This car is too heavy for me to move. If…………………………………………………………… 7. Morning exercises make me feel healthy. If………………………………………………………. 8. The church bells keep me from sleeping. If………………………………………………………… 9. Without air, we would die. If………………………………………………………………….......... 10. I advise him to stop smoking. If……………………………………………………………………. 11. Be calm, or you’ll make a wrong decision. If……………………………………………………… 12. Without a visa, he couldn’t have come to that new country. If………………………………………………………………………………………………………. 13. Today isn’t Sunday, so the students don’t go swimming. If……………………………………………………………………………………………………….. 14. Because you don’t leave immediately, I call the policeman. If………………………………………………………………………………………………………… 15. I don’t know her number, so I don’t ring her up. If………………………………………………………………………………………………………… 16. Go right now or you will be late for the train. If………………………………………………………………………………………………………… 17. As she is often absent from class, she can’t keep pace with her classmates. If………………………………………………………………………………………………………… 18. I couldn’t write to Alice because I didn’t know her address. If………………………………………………………………………………………………………… 19. The heavy rain kept everybody from going outdoors. If………………………………………………………………………………………………………… 20. I didn’t watch TV last night because I was busy. If…………………………………………………………………………………………………………

Hãy viết các đơn thức với biến x,y và có giá trị bằng 9 tại x=-1 và y=1

giúp tớ câu này với.tớ đang cần gấp

Một máy biến áp gồm cuộn sơ có 1.000 vòng, cuộn thứ có 220 vòng đặt ở đầu đường dây tải điện để truyền đi một công suất 10.000 kW a. Biết hiệu điện thế hai đầu cuộn thứ là 110 kV. Tính hiệu điện thế hai đầu cuộn sơ cấp? Máy này là tăng thế hay hạ thế? b.Công suất hao phí do tỏa nhiệt trên đường dây tải điện là 200 kW. Tính điện trở toàn bộ đường dây? c. Muốn công suất hao phí giảm 3 lần. Tính hiệu điện thế trên đường dây lúc này.

Write a conditional sentence type 2 for each situation 1.The karaoke bar makes so much noise almost every night. The residents complain to its owner =>If.............................................................................................................................................................. 2.She has a headache after work every day. She works in a noise office =>If...................................................................................................

Xác định câu đặc biệt trong 3 đoạn dưới và cho biết tác dụng của chúng. Hạn nộp, trước 21g tối chủ nhật.

WORD FORM 1. The woman didn’t regain ________________ and died the next day. ( conscious). 2. I’ll make ____________________ for you to be met at the airport. ( arrange ) 3. People use first-aid to ease the victim’s pain and ________________ .( anxious ) 4. Relax for a few minutes and you’ll feel more _________________ . ( comfort ) 5. The lecture is giving us first-aid __________________ . ( instruct) 6. A dog has bitten him. He needs an anti-tetanus ________________ . ( inject ) 7. The injured player was carried out of the football ground on a ___________ ( stretch) 8. Always wear a safety helmet to _______________ the danger of head (injuries) 9. I felt _________________ because of the boring film .( sleep) 10. Smoking seriously ______________ your health. ( damage ) 11. Although the room was fully furnished. I felt ________________. (comfort) 12. I am _________________ that you passed your exam. ( delight) 13. John speaks English __________________ . ( fluent) 14. The children enjoy playing ___________________ toys .( wood) 15. There is some _________________ in pollution .( reduce) 16. Remove dead leaves to encourage new __________________ (grow) 17. Some household and industrial waste can be recycled to make floor ______________ ( cover) 18. Add sugar, water and flour to the beaten eggs stir the _______________. ( mix) 19. Contact an ________________ like “Friends of the Earth” ( organize) 20. Miss White is a ____________________ from “Friends of the Earth” (represent)

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