Cali chữ Y/n Tone xanh lá cây nhạt

Giúp mình với ạ mình cần gấp ạ . Cảm ơn mn nhiều

tìm. x để mỗi. biểu thức sau có nghĩa 6, a,√x^2+2x. b, √x-3x+2. c,√x^2-1 - 3√x+1 d, 2√x-5+√x^2-25 7, a,√x^2+5. b, √x^2-4x+4. c, √x^2+x+1 d, √-7/x^2

Question 21. [TH] Choose the best option A, B, C, or D to complete each sentence. How many languages are _________ in China? A. speak B. speaking C. spoken D. speaker Question 22. [TH] Choose the best option A, B, C, or D to complete each sentence. Villagers rushed into public shelters as soon as the volcano __________. A. erupted B. erupts C. erupting D. had erupted Question 23. [TH] Choose the best option A, B, C, or D to complete each sentence. After speaking on the phone, we knew we will have to see one another ___________. A. hand-in-hand B. face-to-face C. hand-to-toe D. toe-to-toe Question 24. [NB] Choose the best option A, B, C, or D to complete each sentence. The children are only allowed to watch television at weekends. Therefore, next Tuesday at 8 p. m they___________ television. A. will watch B. are watching C. will be watching D. won’t be watching Question 25. [VD] Choose the best option A, B, C, or D to complete each sentence. ‘I don’t know,’ Anna replied, ___________. A. raising her fists C. tapping her fingers C. shrugging her shoulders D. placing her hands on her hips Question 26. [NB] Choose the best option A, B, C, or D to complete each sentence. Science is used in all corners of the world for the __________ of human A. quality B. discovery C. benefit D. engine Question 27. [NB] Choose the best option A, B, C, or D to complete each sentence. The first experiment was __________, so we need to do another one. A. unsuccess B. success C. unsuccessful D. successful Question 28. [NB] Choose the best option A, B, C, or D to complete each sentence. I prefer face-to-face conversation __________ video call. A. to B. on C. of D. with Question 29. [TH] Choose the best option A, B, C, or D to complete each sentence. Less people write _________ mails now than 20 years ago. A. snail B. social C. nonverbal D. body Question 30. [NB] Find a mistake in each sentence by circling A, B, C, or D. “TTYL” is common (A) used to let someone know (B) you will (C) talk to (D) them later. A. common B. know C. will D. to Question 31. [NB] Find a mistake in each sentence by circling A, B, C, or D. Unable speaking (A) a word of the language (B), he communicated with (C) his hands (D). A. speaking B. of the language C. with D. hands Question 32. [TH] Find a mistake in each sentence by circling A, B, C, or D. He decided to not apply (A) for that job because (B) he didn’t meet (C) all the qualifications (D). A. to not apply B. because C. didn’t meet D. qualifications

Cho tam giác ΔABC, trung tuyến AM, BN cắt nhau tại G. Biết SGBM = 20 cm² . Trong các khẳng định sau, khẳng định nào sai: A. SBMN = 30 cm² B. SGAB = 30 cm² C. SBNC = 60 cm² D. SABC = 120 cm²

Vẽ mầm cảm ơn NL : Cảm ơn những bạn vote câu nì của tui ngheng lần đầu tiên đc 13 cái vote

Viết kết bài cho đề bài:giới thiệu về Truyện Kiều của Nguyễn Du đừng chep mạng nha

Question 33. [VD] Rearrange the words/ phrases given to make a complete sentence by by circling A, B, C, or D. holography/ said that/ Lan/ interact/ would help us/ in real time. A. Lan said that holography would help us interact in real time. B. Lan would help us interact in real time, holography said that. C. Holography said Lan that help us interact in real time. D. In real time, holography said that Lan would help us interact. Question 34. [VD] Rearrange the words/ phrases given to make a complete sentence by circling A, B, C, or D. aliens/ wanted to know/ Dean/ could communicate/ if / verbally. A. Aliens wanted to know if Dean could verbally communicate. B. Dean wanted to know if aliens could communicate verbally. C. Aliens could communicate if Dean wanted to know verbally. D. Dean could communicate if aliens wanted to know verbally. Question 35. [VD] Rewrite these statements as reported speech with tense changes by circling A, B, C, or D. “I can’t chat because I am working now,” said John. A. John said that he couldn’t chat because he were working now. B. John said that he can’t chat because he is working now. C. John said that he couldn’t chat because he was working then. D. John said that he can’t chat because he is working then. Question 36. [VD] Rewrite these statements as reported speech with tense changes by circling A, B, C, or D. “My brother wrote this book last year,” David said to me. A. David said to me that his brother wrote this book last year. B. David said to me that my brother had wrote this book the last year. C. David said to me that his brother wrote that book the last year. D. David said to me that his brother had written that book the previous year. Question 37. [VD] Rewrite these statements as reported speech with tense changes by circling A, B, C, or D. Jane said to us, “I’m having dinner with Rachel tomorrow.” A. Jane told us she is having dinner with Rachel tomorrow. B. Jane told us she were having dinner with Rachel tomorrow. C. Jane said us she was having dinner with Rachel tomorrow. D. Jane told us she was having dinner with Rachel the following day.

cho 6 gam CH3COOH phản ứng với C2H5OH dư xúc tác H2SO4, thu được 3,52 gam este. tìm hiệu suất phản ứng

Đốt m gam bột sắt trong khí oxi thu được 11,04 gam chất rắn X gồm Fe, Fe3O4, FeO, Fe2O3. Để hòa tan hoàn toàn hỗn hợp cần vừa hết 180 ml dung dịch H2SO4 1M, tạo thành 0,336 lít khí ở đktc. Tính m.