Tìm x biết x^2-2x-1=0 dùng tách ở giữa nha mng nhanh thì cho hn

Calli: Yêu lớp 7/3 (thêm 3 hình trái tim nhỏ ở đằng sau 7/3 nx ạ) Y/c: Đẹp, xinh Xấu = báo cáo

Cali: Việt Nam zô địch NL: Tối nay ai thức đến 1 giờ xiêm bóng đá khum zô đỉm danh đuy ạ

Read the following passage and write the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. You can do a few things to make homework less stressful. First, be sure you understand the assignment. Write it down in your notebook or day planner if you need to and don’t be afraid to ask questions about what is expected. It is much easier to take a minute to ask the teacher during or after class than to struggle to remember later that night! If you want, you can also ask how long the particular homework assignment should take to complete so you can plan your time. Second, use any extra time you have in school to work on your homework. Many schools have libraries that are specifically designed to allow students to study or get homework done. The more work you can get done in school, the less you will have to do that night. Third, pace yourself. If you don't finish your homework during school, think about how much you have left and what else is going on that day, and then plan your time. Most middle students should have between 1 and 3 hours of homework a night. If it is a heavy homework day, you will need to devote more time to homework. No one is expected to understand everything, and maybe you need some help. The first time to turn for help is your teacher. But what if you don't feel comfortable with your teacher? If you are in a big enough school, there may be other teachers who teach the same subject. Speak to other teachers directly and you may be in task. Sometimes it just helps to have someone explain something in a different way. Moreover, you might also be able to get some help from another student. If there is someone you like who is a good student, think about asking that person if you can study together. Question 29: What is the most important thing you should do when you get your assignment? A. to know when you hand it in B. to understand it and its requirements C. to know how long it takes to complete it D. to remember it in order to plan the time Question 30: If you have any free time left at school, you should ______. A. use it to do your homework in the library B. spend time with your friends C. use it to understand the assignment D. use it to make your day planner Question 31: When students need some help, they should ______. A. never ask other teachers because it will hurt their own teachers B. always turn to their own teachers for help C. ask any good students at the subject in your school D. go to their teachers or other teachers teaching the same subject Question 32: The main idea of the first three paragraphs is ______. A. to get help when you need it B. to do homework immediately C. to create a homework plan D. to ask your teachers for more explanation

Câu 1: Du lịch biển mới tập trung ở hình thức A. tắm biển. B. bóng chuyền trên cát. C. du thuyền. D. lặn biển. Câu 2: Dọc bờ biển nước ta có A. ba cơ sở sản xuất muối lớn. B. hai cơ sở sản xuất muối lớn . C. một cơ sở sản xuất muối lớn. D. không có cơ sở sản xuất muối nào. Câu 3: Bãi cát có chứa ôxittitan có giá trị xuất khẩu thuộc A.Hải Phòng . B. Vũng Tàu. C. Quảng Ninh, Khánh Hòa. D. Đà Nẵng. Câu 4: Tài nguyên khoáng sản quan trọng nhất ở thềm lục địa là A. dầu mỏ . B. Khí thiên nhiên. C. dầu mỏ, Khí thiên nhiên. D. quặng. Câu 5: Cả nước hình thành được A. bốn cụm cơ khí đóng tàu biển. B. năm cụm cơ khí đóng tàu biển. C. sáu cụm cơ khí đóng tàu biển D. ba cụm cơ khí đóng tàu biển: Bắc, trung , nam . Câu 6: Ônhiễm biển dẫn đến hậu quả nghiêm trọng về A.sinh vật biển, du lịch biển. B. Giao thông biển. C. khoáng sản biển. D. muối biển. Câu 7: Trong bảo vệ tài nguyên môi trường biển có A. 2 phương hướng chính. B. 3 phương hướng chính. C. 4 phương hướng chính. D. 5 phương hướng chính.

Cho tam giác ABC vuông ở A, lấy D là điểm bất kì thuộc cạnh BC. Gọi E là điểm đối xứng với D qua AB, F là điểm đối xứng với D qua AC A) Chứng minh rằng A là trung điểm của EF B) Điểm D ở vị trí nào trên cạnh BC thì EF có độ dài ngắn nhất

chứng minh sách là ngọn đèn sáng bất diệt viết bài văn

James Cook was born in England (43) 1728. His parents (44) poor farm workers. (45) James was 18, he found a job on a coastal ship. He worked (46) ships until he was 27 years old, and then he joined the navy. He fought (47) Canada in a war against France. In 1768 King George III made him the captain of a ship and (48) him to the Pacific. He was gone (49) nearly three years when he (50), he was a national hero. 43. A. in B. at C. on D. during 44. A. are B. be C. were D. was 45. A. while B. when C. because D. during 46. A. in B. on C. for D. under 47. A. at B. in C. to D. against 48. A. got B sent C. send D. sending 49. A. in B. since C. for D. during 50. A. got B. came C. returned D. arrived

Giúp nình caqu này đi mọi người

43. We’ll get there early so that we’ll be able to get tickets. A. If we get there early, we’ll be able to get tickets. B. If we don’t get there early, we’ll be able to get tickets. C. If we get there early, we won’t be able to get tickets. D. Unless we get there early, we’ll be able to get tickets. 44. “Close your books and go out to play”, the teacher said to us. A. The teacher told us close our books and go out to play. B. The teacher told us to closing our books and go out to play. C. The teacher told us closing our books and go out to play. D. The teacher told us to close our books and go out to play. 45. My dad worked in a factory in the past, but doesn’t work there now. A. My dad used to working in a factory. B. My dad used to be working in a factory. C. My dad used to work in a factory. D. My dad used to be work in a factory. 46. Mr. Peter has written a lot of articles for the CNN News. A. A lot of articles have written for the CNN News by Mr. Peter. B. A lot of articles have been written for the CNN News by Mr. Peter. C. A lot of articles has written for the CNN News by Mr. Peter. D. A lot of articles has been written for the CNN News by Mr. Peter. 47.Althoughhewastired, hefinisheddoinghishomework. A. In spite his tiredness, he finished doing his homework. B. In spite of his tiredness, hefinished doing his homework. C. In spite of he was tired, he finished doing his homework. D. In spite his tired, he finished doing his homework. 48. He is a much slower speaker than my brother. A. He speaks much more slowly than my brother. B. He doesn’t speak much more slowly than my brother. C. He speaks much more quickly than my brother. D. He doesn’t speak much more quickly as my brother. 49. They often went to school by bike when they were young. A. They used go to school by bike when they were young. B. They used to going to school by bike when they were young. C. They used to go to school by bike when they were young. D. They used to went to school by bike when they were young. 50. She has taught her children to play piano for 4 years. A. She started teaching her children to play piano 4 years ago. B. She started to teaching her children to play piano 4 years ago. C. She started teaching her children to play piano for 4 years ago. D. She started teaching her children to play piano since 4 years.