tìm x: x: 0,2 + x : 0,5- x nhân 2 = 12,03

Em hỏi phần đọc hiểu và câu 2 bài nghị luận xã hội mong thầy cô giúp em ạ

tìm x biết 50 + (x - 2) = 90 - 1

People know that Japan produces a wide range of cars. (produce) -> Japan... Mr. Brown will have the porter carry his luggage to his car. (carried) -> Mr. Brown ... We didn’t hurry, so we were late for the concert. (had) -> If... We must take steps to preserve natural resources, or the planet will be in danger. -> Unless... He doesn’t get a job, so he can’t pay his bills. (got) -> If ... Did Lan use to walk past the mosque on her way to primary school? (used) -> Lan... Although it got dark, they continued to work. -> Despite... It’s time for you to wake up and go to school. (woke) -> It's ...

Hấp thụ hoàn toàn 2,688 l khí co2(đktc)vào 2,5l dd ba(oh)2 bM thu được 15 ,76 g kết tủa. tìm b Giải theo hai pt co2+ba(oh)2 ->baco3+h2o 2 co2+ba(oh)2 ->ba(hco3)2

Giải giúp e câu 1,2 ,4 với ạ e cần gấp ạ

I. Choose the best answer to complete each of the following sentences. 1. I do not agree _______ the idea that robots will be useful to us in the future. A. with B. in C. on D. by 2. There were some amazing robots _______ the international robot show. A. on B. at C. for D. of 3. _______ robots replace teachers in the classroom within the next ten years? A. Do B. Could C. Are D. Will 4. In five years, some robots will be able to speak with human _______. A. life B. body C. voice D. way 5. In the past, robots had a _______ role, but they will play a very important role in the future. A. useful B. minor C. complicated D. dangerous 6. Will some robots be _______ humans? A. as intelligent as B. more intelligent C. more intelligent as D. most intelligent than 7. _______ can help children improve their basic learning skills. A. Home robots B. Doctor robots C. Worker robots D. Teaching robots 8. _______ robots take our jobs, what will humans do all day? A. When B. Whether C. If D. Although 9. It was so noisy that we _______ hear ourselves speak. A. can B. mustn’t C. could D. couldn’t 10. ‘Some experts say robots will be smarter than humans within two decades.’ ‘_________ A robot is just a machine, I think.’ A. Not for me. B. I totally disagree. C. Never mind D. I agree 11. My father is controlling a robot to cut the green _____ in the garden while my mother is doing the dishes in the kitchen. A. paper B. fence C. coin D. hedge 12. You should have a good habit of_____ the bed after you wake up every morning. A. doing B. making C. putting D. sticking 13. I don't ________ why he's trying to do everything on his own. He should learn how to listen to people's advice. A. think B. find C. understand D. recognize 14. I can't __________ this big cupboard. I need to ask for some help to move it into my kitchen. A. lift B. throw C. show D. hold 15. I think robots will_____ the house very carefully and stop someone trying to break into there. A. share B. shout C. guard D. make 16. We are interested ___watching modern home robots in the exhibition. A. in B. about C. on D. of 17. They can see a lot of _____of robots such as teaching robots, doctor robots or space robots when they come to the robot centre. A. buildings B. roles C. things D. types 18. Some people are afraid that robots with a lot of____ will be able to be used for bad purposes. A. energy B. power C. activities D. work 19. My brother_______ draw beautiful pictures when he studied at primary school. A. should B. could C can D. would 20. She _______speak English fluently two years ago. But now she _______ communicate with foreigners confidently thanks to her English teacher. A.can't/ could B. couldn't/can't C. couldn't/can D. can't/ couldn't

Tìm x thuộc Z để biểu thức sau có giá trị nguyên : A = $\frac{2x+3}{x-1}$

Bài 12: Hai tổ SX cùng may một loại áo .Nếu tổ thứ 1 may trong 3 ngày tổ thứ 2 may trong 5 ngày thì 2 tổ may được 1310 chiếc áo. Biết rằng trong một ngày tổ 1 may được nhiều hơn tổ thứ 2 là 10 chiếc áo .Hỏi mỗi tổ trong 1 ngày may được bao nhiêu chiếc áo ?

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