Lm giúp mk vs ak mk vote 5 sao

vẽ chibi NL: quạt quạt cho hết sự vắng ở họa ;-;

Tìm x a, `-2/3x=4/15` b, `2``1/3x=-7/26` c, `-7/19x=-13/24`

15) Andrew .................... the test before so he...................... it very easy. A. did/ had found B. had done/ found C. was doing/ found D. did/ was founding 16) You ...................... your new hat when I ...................... you yesterday. A. were wearing/ had met B. wore/ had met C. wore/ was meeting D. were wearing/ met 17) As I .................... the glass, it suddenly ...................... into two pieces. A. cut/ broke B. was cutting/ broke C. cut/ was breaking D. was cutting/ had broken 18) A burglar .................. into the house while we ................... television. A. broke/ were watching B. broke/ watched C. had broken/ watched D. broke/ had watched 19) When I ............................... home, I ........................... a phone call. A. got/ received B. was getting/ was receiving C. got/ had received D. had got/ had received 20) They ................. small cups of coffee after they ..................... dinner. A. had drunk/ finished B. drank/ finished C. were drinking/ finished D. drank/ had finished 21) It was midnight. Outside it ........................... very hard. A. rains B. rained C. had rained D. was raining 22) When he ....................... at the station, his train already..................... A. arrived/ left B. arrived/ had left C. had arrived/ left D. had arrived/ left

Cảm nhận của em khi đọc dòng văn trên

a,Cos (2x +π/5) =cos π/5 b, cos (x+π/4) = cos 2x c, cos x = sin x d, sin (x+ π/3)= sin 2x e, 2sinx +1=0 k,(2cosx +1) (√2 +2sinx)

Tính a, `-9/34``*17/4` b, `-20/41``*-4/5` c, `-15*2/3` d, `-5/2:3/4` e, `4``1/5:(-2``4/5)` g, `1``4/5:(-3/4)`

7) A person or thing that is loved and admired very much is the .............. A. ideal B. idea C. idol D. fan 8) A short part of a film or movie that is shown separately is called a ...... A. picture B. clip C. news D. cartoon 9) She ..................... shyly at him and then lowered her eyes. A. looked B. stared C. glanced D. sighted 10) This ........................ girl was disliked by the rest of the class. A. helpful B. sneaky C. unselfish D. generous 11) He pulled a(n) ......................... of 10 pounds notes out of his pocket. A. sum B. amount C. piece D. wad 12) I’ve never fallen in such a(n) ............................ situation before. A. embarrassed B. embarrassing C. confused D. confusing 13) The children were ......................... about opening their presents. A. interested B. fond C. keen D. excited 14) I know from ............................ that he’ll arrive late. A. knowledge B. experience C. understanding D. reality

còn 10đ thui mong vẫn có người giải đầy đủ + có tâm giùm mình TT Giải phần a thôi ạ

Lúc 7h sáng,hai ô tô cùng khởi hành một lúc từ hai đầu quãng đường AB dài 380km. Xe khởi hành từ A với vận tốc 50km/h,xe khởi hành từ B với vận tốc 40km/h. a) Hỏi hai xe gặp nhau lúc mấy giờ,biết rằng xe khởi hành từ A phải dừng lại nghỉ trên đường là 30p. b) Xe đi từ B phải đi mất bao nhiêu thời gian nữa mới hết quãng đường?