Tìm m để phương trình (m+3)x-1 =m^2 - 9 vô nghiệm

Câu 1: Khi in một trang tính ra giấy, bản in ngoài giấy luôn đúng với trang tính trên màn hình không? Nếu không em cho biết cách khắc phục. Câu 2: Tại sao trước khi in trang tính ra giấy người ta thường nhấn nút lệnh Page Layout hoặc Page Break Preview? Nếu nhấn nút Print thì máy in có in ra trang tính không?

II. Find and correct the mistake 1. Where(A) time is (B) it (C)? – It’s ten (D) o’clock. 2. My(A)mother watch (B) T.V in (C) the (D) evening. 3. Nam go(A)to (B) school at (C) 6.20 A.M in (D) the morning. 4. LiLi have(A)lunch at (B) 11.30 in (C) the morning (D). 5. I go(A)to (B) school on (C) 6.30 A.M in (D) the morning. III. Read the passage and then answer the following questions: Hi, my name is Peter. This is my father. He gets up at six o’clock. He has breakfast at 6.30 A.M. He goes to work at 7 o’clock. He works from 7.30 A.M to 4.30 P.M. He watches T.V in the evening. He goes to bed at 10.45 P.M. 1. Who is this? – This………………………………………………………………………. 2. What time does he get up? – He gets…………………………………………….. 3. What does he do at 6.30? – He has………………………………………………… 4. What time does he go to work? – He goes……………………………………….. 5. How many hours does he work a day? – He works…………….. hours a day. 6. What does he do in the evening? – He watches………………………………….. 7. What does he do at 10.45? – He………………………………………………………… 8. Where is he at 8.30 A.M? – He is………………………………………………………… IV. Circle the odd one out (tìm từ không cùng nhóm 1. A. eleven  B. twelve  C. twenty  D. time 2. A. where  B. what  C. when  D. o’clock 3. A. lunch  B. breakfast  C. ice-cream  D. dinner 4. A. evening  B. morning C. afternoon  D. work 5. A. go  B. watch C. have  D. lunch 6. A. school  B. work  C. bed  D. ten 7. A. Monday  B. Tuesday  C. January  D. Friday 8. A. at  B. from  C. to  D. T.V

Nowadays, you don’t need to be at home or at the office to use the phone. You can carry a mobile phone in your pocket or keep one in your car. With a mobile phone, anyone who can talk and walk can also phone and walk. You don’t have to look for a pay phone to make a call anymore. Now you can take your calls with you everywhere. What is the passage written about? A. the office B. public telephone C. mobile phone D. making a call Nowadays, you …………… be at home or at the office to use the phone. A. shouldn’t B. ought not to C. mustn’t D. don’t have to What does the word “one” in line 2 refer to? A. home B. office C. pocket D. mobile phone The phrasal verb “look for” in line 3 mean ……………. A. try to find B. take C. have D. try using Which of the following is NOT TRUE? A. If you have a mobile phone, you can phone and walk. B. Nowadays, you don’t have to look for a public telephone to make a call anymore. C. Today, you can make a call anywhere. D. You must keep a mobile phone in you pocke

I. Read the definitions and write the types of film. 1. This kind of film often includes scary characters like vampires and zombies. __________ 2. This kind of film usually has a story about cowboys in the USA. __________ 3. This kind of film includes songs and dancing __________ 4. Studios like Disney and Pixar make this kind of film. __________ 5. This kind of film is about a large and terrible event, like a tsunami, an earthquake or a hug fire. __________ 6. This kind of film shows a specific period in the past. You can see how people dressed, spoke and behaved in those days. __________ 7. This kind of film is about soldiers and battles. __________ 8. This kind of film often shows the future. They sometimes includes aliens. __________ 9. This kind of film is about love stories that are also funny. __________ 10. This kind of film is fast, exciting films that often contain fights and car chases. __________ Giúp mình với nha mngười!!!!!

các bạn làm câu c giúp mình với mình cần gấp

Giải thích tại sao khi nhốt một con dế mèn vào một lọ nhỏ rồi đậy nắp kín sau 1 thời gian con vật sẽ chết dù đủ thức ăn

ĐỀ CƯƠNG ĐỢT 2 TIẾNG ANH I. Circle the best answer A,B,C or D: 1. It’s time ………………………. breakfast. A. to B. in C. for D. eat 2.What …………………………. is it? It’s seven o’clock. A. day B. time C. year D. month 3. What time ……………………… it? It’s ten thirty. A. are B. am C. be D. is 4.It’s time for………………………………? A. lunch B. learn C. play D. dance 5. What time is it? It’s……………………….o’clock. A. thirty B. fourty C. twenty D. fifty 6. Excuse me. - ………………………..? A. Thanks B. No C. Yes D. What 7. Mai ……………………… lunch at 12.30. A. have B. has C. does D. plays 8. What time does Linda have…………………..? A. fifteen B. subject C. dinner D. football 9. My mother ………………….. lunch at twelve o’clock. A. have B. learns C. plays D. has 10. His brother ………………………….. to work at 6.45 A.M. A. go B. speak C. play D. goes 11. Her mother ……………………….. T.V in the evening. A. watches B. watch C. plays D. goes 12. His father goes to work …………………….. the morning. A. on B. in C. at D. to 13. She goes to bed at ……………………. P.M. A. 10.30 B. 25.30 C. 32.30 D. 40.45 14. …………………………….. he watch T.V in the evening? Yes, he does. A. Do B. Does C. Play D. Don’t 15. …………………………… time do you have lunch? At 11.20 A. what B. where C. when D. who 16. My father doesn’t work …………………………. the evening. A. on B. to C. from D. in 17. I don’t ……………………….. T.V in the morning. A. watches B. watch C. play D. learn 18. He works from 7.30A.M ………………………… 4.30 P.M. A. on B. to C. at D. in

Một hình thang có diện tích 1200cm2, đấy lớn 40cm, đáy bé bằng 1/2 đáy lớn. Tính chiều cao hình thang đó.mik đag cần gấp vite 5 sao cho

VIết thành bài nhà nha Đè bài: Nhận xét về bài thơ “Rằm tháng giêng", có ý kiến cho rằng: Bài thơ “Rằm tháng giêng" là cả một sự hài hòa tuyệt đẹp". Bằng những cảm nhận về bài thơ, hãy làm sáng tỏ ý kiến trên.