Đất nào là đất có thành phần cơ giới nặng.

Mọi người làm từ từ thôi nha!!!!

Ai nhanh nhất đực hay nhất. Chắc đúng nha

1)so sánh a)1/2√50 và 1/5√200 b)1/3√2 và 1/2√3 2)giải phương trình a)√2x - 3√32x =52 b)3√x-1 + 2√4x-4 - 3√9x-9 +6=0

Cho đoạn thẳng AB có độ dài 11cm. Điểm M nằm giữa A và B. Biết rằng MB – MA = 5cm. Tính độ dài các đoạn thẳng MA, MB.

1. The sun always (rise) in the east. 2. In my country, it (not, rain) much in winter. 3. The moon (move) around the earth. 4. Mai (be) very happy because she has 3 good marks today. 5. I like (play) tennis. 6. My brother (enjoy) playing football. He usually (play) football every afternoon. 7. My brothers (be, not) engineers. 8. Well, he is 40 years old, bald with a moustache. He (have) large ears and he (wear) glasses. 9. They (have, not) any money. 10. Hoa (visit) her parents once a year.

tìm x,y biết 2018^x+2019^y=2020^2

Một giọt mưa rơi được 100m trong giây cuối cùng trước khi chạm đất .Nếu xem hạt mưa là rơi tự do thì nó bắt đầu rơi từ độ cao bao nhiêu ?lấy g=9.8m/s2

Giải giúp mình vs ạ Mình cần gấp ạ

1. He said, "I am writing a test tomorrow." 2. He asked, "Do I have to do it?" 3. They said, "We were in London last week." 4. Mary said " Did you check up your plan last week, Tom?" 5. "I will apply for my visa tomorrow," She said. "Will you send us your report next week?" They said to him 7. "If I were you, I wouldn't come here," Lan said. 8. "Please let me borrow your car." he said to her. 9. "I'll phone you tomorrow." he told Jack. 10. Mai said "How do you get to your school, Children?" 11. The policeman said to her " Please, show me your lience" 12. "I will phone to you as soon as I get there" She said to her parets 13. "What have you done to improve your English?" she said to her students. 14. Her father * Please, call me as soon as you can" 15. She said "Do you practise your English everyday, Nam?" 16. They said Don't put your shoes on our chair, Nancy" 17. His mother said to him "Were you playing games at 8 o'clock last night?" 18. " Please, leave here as quickly as you can, Lan" the policeman said 19. How often do you visit your parents, Mai? He said 20. "Don't leave your bike here, boys" the woman said