5x² +10y ² +26 - 14xy-18x-28y tìm GTNN

Vẽ avarta tui, mà ai bt vẽ kiểu sáng sáng như lày ko ạ? Mong các idol trl...

1. I have Math lessons Monday and Friday. A. on B. in C. at D. from 2. His new house on Tran Phu Street. A. is B. are C. am D. A&C 3. Mai brushes teeth every morning. A. his B. my C. her D. your 4. We are traveling to the countryside bus. A. on B. in C. from D. by 5. He goes to school five o’clock the morning. A. on/in B. for/at C. in/on D. at/in 6. Mai dressed at six thirty every morning. A. does B. brushes C. gets D. lives 7. Minh goes to school 12.45 every afternoon. A. in B. at C. on D. to 8. My father is an . He works in a big factory. A. teacher B. doctor C. farmer D. engineer 9. is your brother? - He is thirteen. A. What time B. How far C. How old D. How long 10. My teacher lives a big city. A. in B. on C. at D. to 11. This is Lan. house is new. A. My B. Your C. Her D. His 12. Nam and Minh playing soccer in the yard at the moment. A. do B. is C. are D. does 13. What time does Nga every morning? A. gets up B. get up C. get D. gets 14. He breakfast at six o’clock every mornings A. have B. having C. has D. to have 15. Our classroom is the second floor. A. from B. in C. at D. on 16. How many chairs there in the house? A. do B. is C. are D. does 17. What time every morning? A. do Mai gets up B. does Mai gets up C. does Mai get up D. does get Mai up 18. We play games the afternoon. A. on B. in C. at D. to 19. your parents do? - They are workers. A. How does B. What does C. What do D. Who 20. How many floors your school have? A. do B. does C. is D. are

Nhanh nha 28,3 × x + 71,7 × x = 2014

giúp mik bài 2 với ạ MIK CẢM ƠN Ạ

3. Mai brushes teeth every morning. A. his B. my C. her D. your 4. We are traveling to the countryside bus. A. on B. in C. from D. by

Cho 2019 số tự nhiên liên tiếp từ 1 đến 2019. Xếp một cách tùy ý 2019 số trên nối tiếp nhau thành một dãy số các chữ số, ta được số A. Hỏi A có chia hết cho 36 không? Vì sao?

Cho a:b=b:c=c:d (a,b,c,d khác 0 ) C/M a=b=c Lưu ý trước 4h

Tìm x biết rằng: (2x+1) (1-2x)+(2x-1)^2=22

Nêu đời sống vật chất và tinh thần của người nguyên thủy ở hà Tĩnh.