mn ơi vẽ cho e cái bìa bọc vớ á mà tự vẽ đi r đg rất cần luôn í vẽ hai mặt nha e sẽ cho ctlhn mặt trước có tên là học tiếng mèo kêu mặt hai là bé heo

√(x-30)2 với x>3 làm giúp mình với

lm hộ bài ds, chỉ lm phần c và d

1 dây dẫn nikêlin có chiều dài 100m ,tiết diện 0,5mm² được mắc vào nguồn điện có hiệu điện thế 120V

Làm câu 6 tb đầy đủ cách làm nhé mn

Điền số thích họp vào chô chấm 6..18..30..42...60

Bài 13: Khoanh tròn vào đáp án đúng. Should people retire to the countryside? Many people who are close to their retirement want to move to the countryside to enjoy the rest of their life. It is widely believed that life in the rural areas are (1) _______ than that in the city. The countryside is (2) _______ than the city and people’s health will improve. (3) _______, city folks have warned people about the potential risks of living the rural areas. Life in the countryside may not be blissfully calm as expected, even tougher. For example, rural houses are (4) _______ and more inconvenient than those in the city. During harsh weather condition, it is dangerous for people living in it. (5) _______, people may also (6) _______ up to the lack of health care service. The vulnerable old people can’t be (7) _______ treated in the countryside than in the city. For those who have spent most of their life working and living in urban areas, they may not be able to (8) _______ the boredom and lack of facility in the rural areas. 1. A. more peaceful B. more peacefully C. more noisy D. more noisily 2. A. less polluted B. more polluted C. less pollute D. more pollute 3. A. However B. But C. Therefore D. When 4. A. much weaker B. more weaker C. less weaker D. more weakly 5. A. However B. Besides B. Besides D. Therefore 6. A. look B. make C. face D. take 7. A. well B. more better C. best D. better 8. A. come down with B. put up with C. work out D. agree on

3sinx + 4cosx =3 2sin^2x + 4sinx = 3cos^2x 2tan^2x + 3 = 3/cosx Tanx + cotx =2

Bài 11: Hoàn thành các câu sau, sử dụng dạng so sánh của các trạng từ hoặc tính từ cho sẵn. Unit 2 City life 1.I prefer living in the countryside to living in big cities as the countryside is ______________.I really enjoy peaceful moments of life. 2. Although the cities are ______________ than the countryside, there are more recreational activated that I really enjoy in the cities. 3. I can’t believe this vase is more than 100 years old. It is much ____________ than I thought. 4. The city is always ______________populated than the countryside. 5. My town is much ______________ than it was ten years ago. I remember there used to be only several houses in a large area. 6. Houses in the rural areas are ______________ than those in urban areas. 7. Young people often ______________ adjust to changes than the old. 8. The number of skyscrapers in the city is growing ______________ than ever before. Bài 12: Hoàn thành những câu sau bằng một cụm động từ thích hợp. Unit 2 City life 1.I have seen a lot of people burst into tears when they ____________ their friends and family ____________. 2. Do you ____________ me that you didn’t try hard enough? 3. Has your teacher ever__________ you___________? No, she hasn’t. She is a nice teacher. 4. Last week I borrowed Tom $50 to buy a book but I ____________ him ____________ yet. 5. My boyfriend walked towards me and then he ____________ a small gift. 6. I never ____________ in ghosts but my brother is always scared of them. 7. ____________! There is a car coming. 8. I hate the way Peter tells lies and ____________ stories to cheat people. 9. Have you ____________ enough to buy a new car? 10. I promised my mother not to ____________ her ____________, so I tried my best to get high scores.

Tìm m để phương trình x³-3x+4-m=0 có 3 nghiệm phân biệt