bài 10 tính nhanh A=3/4+2/7+1/4+3/5+5/7 B=2/17+15/23+15/17+4/19+8/23 C= 3/7+15/3 +4/7 D=5/21+2/21+8/24

19. People speak English all over the world _____________________________________________________________________________ 20. Thomas Edison invented the phonograph in 1877 _____________________________________________________________________________ 21.Children don’t clean their bedrooms every day _____________________________________________________________________________ 22. Mary eats a loaf of bread every morning _____________________________________________________________________________ 23. A short circuit could cause the fire. _____________________________________________________________________________ 24. I could send this mail to her on time. _____________________________________________________________________________ 25. Should they announce that news as soon as possible? _____________________________________________________________________________ 26. Phuong has to return the scientific books to the library _____________________________________________________________________________ 27. Will the government rebuild the memorial monument? _____________________________________________________________________________ 28. The teacher won’t accept paper written in pencils. _____________________________________________________________________________ 29. The principle might interview her. _____________________________________________________________________________ 30. What computer can I use to type this letter? _____________________________________________________________________________

(Chỉ có 1 câu thôi ạ) Write the verb brackets in the correct form, present perfect simple or present perfect continuous. Use contractions where possible. 1. I’m afraid .....(we/get) any milk .....(we/expect) a delivery for the past four hours but .....(they/show up) yet. Help!

(X+2y)^3 (X-2y)^3 (X+y/2)^2 X^3-6x+27x-27 27+27x+6x^2+x^3

1 + tanx = 2 √2 sin (x + $\frac{\pi}{4}$ ) tìm nghiệm x ∈ ( 0 2$\pi$ )

mn vẽ giùm mình Acreus trong pokemon vs

Vẽ anime nam và nữ nhá <3 Nội dung còn lại ở bình luận nhá

1 khu vườn hình hữ nhật có chiều dài 3000m và chiều rộng bằng 1/2 chiều dài. hỏi diện tích khu rừng đó bằng bao nhiêu mét vuông, bao nhiêu héc-ta

m√n-n√m+√m-√n.phân tích đa thức thành nhân tử

Hãy phân tích một câu tục ngữ mà em tâm đắc nhất ?