Bài 2: B=4/√x +2 (đk x>= 0) 2, tìm x nguyên để B nguyên

IV,Choose the best answer to complete the sentences. 1.Bella getting fat ,so she want to lose____________. A.Blance B.health C.weight D.interest

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ai giúp với !!! IV. Change these sentences into passive ones. 1.We held the meeting on the second floor. ..................................................................................................................... 2. They received the goods. ...................................................................................................................... 3.Somebody cleans that room everyday. ........................................................................................................................ 4. They have built a new hospital near the airport. ........................................................................................................................ 5.The restaurant serves seafood every Monday. ........................................................................................................................ 6.Someone has stolen his gun. ........................................................................................................................ 7.The directors have fired those lazy clerks. .......................................................................................................................... 8.People speak English in the US ......................................................................................................................... V.Choose the correct word marked A, B, or C fill each blank in the following passage. HOBBY There are many reasons (1)________ it is important to have a hobby. First of all, a hobby can be a remedy for your (2)________. Because it is the activity you choose for yourself, it will always give you pleasure and (3)________ you relax. Even if you just spend a little time enjoying your hobby, you can see the difference (4)________ your spirit. Second, some hobbies can also (5)________ you financially. Many old people enjoy gardening. They grow a lot of trees and vegetables, so they can sell them for some money. In (6)________, a hobby can help you connect with other people. If you like collecting stamps, you can (7)________ a stamp club to share your albums with other collectors. If your hobby is carving eggshells, you can give your products to your friends (8)________ gifts. 1.A . for B. why C. because 2.A .happiness B. pain C. tiredness 3.A. help B. have C. do 4.A. for B. in C. on 5.A. harm B. give C. benefit 6.A. addition B. general C. conclusion 7.A.take part B. go C. join 8. A. like B. as C. for VI.Read and fill in the blanks with ONE word given in the box. hobby improve when taught writes because ending might myself cultures My name is Sara. My favourite (1) _________ is reading. I enjoy reading a book when I am free. I started to do it (2)________I was four years old. The first time I did it, I felt interested. So I kept reading. The teachers (3)_________ me to read the difficult words. I was happy when I read a story with a happy (4) _________. I was thrilled when I read a detective story. I enjoy reading (5) _______ I like to explore the imaginative world of my favourite author, J.K. Rowling who (6) ___________ “ Harry Potter” . There are a lot of advantages of reading. Reading can make me relaxed and calm. I can also learn new vocabulary items. Then I can further (7) __________my English. Moreover, it can give me an unlimited imagination, so I can write books in the future. I can learn the different (8) _______ and customs of other countries in the world too. I read at least one hour every day. I read books by (9) ___________. I usually read books at home. I wish I could read different kinds of books because it (10) ______ be very challenging.

Giúp mình vs ạ nếu dc ghi rõ công thức ra cho mình vs

Từ điểm A ở ngoài đường tròn (O), kẻ hai tiếp tuyến AB, AC tới đường tròn ( B, C là các tiếp điểm). Đường thẳng đi qua A cắt đường tròn (O) tại hai điểm D và E (trong đó D nằm giữa A và E , dây DE không qua tâm O). Lấy H là trung điểm của DE và AE cắt BC tại điểm K . a) CMR: tứ giác ABOC là một tứ giác nội tiếp. b) CMR: HA phân giác của góc BHC

Giúp mình với m.n ơi. Mình đang cần gấp ạ. Cảm ơn nhìu

Đề là tính giá trị của biểu thức sau nhé

Ghi rõ ra công thức cho mình vs ạ

EXERCISE 1: CHUYỂN CÁC CÂU SAU SANG BỊ ĐỘNG. 1. I had my nephew paint the gate last week. 2. She will have Peter wash her car tomorrow. 3. They have her tell the story again. 4. John gets his sister to clean his shirt. 5. Anne had had a friend type her composition. 6. Rick will have a barber cut his hair. 7. I will get the dressmaker to make a new dress. 8. He had a mechanic repair his car. 9. She often gets the technician to maintain the heater. 10. They had the police arrest the shoplifter. 11. Are you going to have the shoemaker repair your shoes? 12. I must have the dentist check my teeth. 13. She will have a veterinary surgeon examine her dog. 14. We had a man take this photograph when we were on holiday last summer. 15. The Greens had a carpet cleaner clean their carpet.