48^2 . 8^5 . 100^9 phần 12^2 .2^15 . 4^2 Giups em với ạ

Mn giải chi tiết hộ mình câu 8 nhá mình cảm ơn

viết một đoạn văn ngắn khoảng 10-12 câu trình bày suy nghĩ của em về những đặc điểm trong tính cách con người Việt Nam trước yêu cầu mới của thời đại, trong đó có câu chứa thành phần phụ chú

Write ad answer to one of the questions below. Write your answer in about 100 words. Topic: This is part of a letter you receive from a Canadian friend. Your story must begin with this sentence: Finally, school finished and Charlie quickly ran to…

51. If you listen to music, you can’t ……………your study. a. concentrate on b. interested in c. care about d. read about. 61. ……………you study harder, you won’t pass the final exam. a. unless b. if c. if not d. without. 62. If the weather………….fine, we will go on a picnic. a. is b. were c. would be d. will be. 63. If he………………….harder, the results will be better. a. worked b. works c. has worked d. will work. 64. If Americans ate fewer foods with sugar and salt, their general health………..better. a. be b. will be c. is d. would be. 65. If she hadn’t overslept, she ………..late for the interview. a. wouldn’t be b. wouldn’t have been c. hadn’t been d. would have been 66. I’d have told you if I …………..the book. a. had seen b. would have seen c. saw d. see. 67. If we had known your new address, we…………..to see you. a. came b. would have come c. would come d. will come. 68. If I found a wallet in the street, I ………….take it to police. a. will b. should c. would d. shall 69. I ………….that coat if I were you. a. wouldn’t buy b. didn’t buy c. don’t buy d. won’t buy. 70. If you didn’t do this , you ……………punished. a. are b. will be c. would be d. should be.

Chứng tỏ pt sau vô nghiệm x^2+1=0

Câu hỏi tự luận: Hãy viết một đoạn văn ngắn trình bày những hiểu biết của anh chị về triết lí sống mới mẻ, táo bạo mà Xuân Diệu gửi gắm trong bài thơ " Vội vàng"? *

Cho đường tròn (O;R) đường kính AB. Điểm H thuộc đoạn OA. Kẻ dây CD vuông góc với AB tại H . Vẽ đường tròn (O1) đường kính AH và đường tròn (O2) đường kính HB. Nói CA cắt đường tròn (O1) tại M,nối BC cắt đường tròn (O2) tại N.Nối MN cắt đường tròn (O;R) tại E và F. a) Chứng minh CMHN là hình chữ nhật b) Cho AH=4cm, HB=9cm. Tính MN c) Chứng minh: CE=CF=CH

Một lớp học có 38 học sinh .Số học sinh nam nhiều hơn học sinh nữ là 6 em .Hỏi lớp học đó có bao nhiêu học sinh nam bao nhiêu học sinh nữ

Choose the sentences that have the same meaning as the given ones. 7. If she did her hair differently, she would look quite nice. A. Unless she did her hair differently, she wouldn’t look quite nice. B. Unless she did her hair differently, she would look quite nice. C. If she did her hair differently, she wouldn’t look quite nice. D. If she didn’t her hair differently, she wouldn’t look quite nice. 8. If I had more time, I would help the poor. A. If I had more time, I wouldn’t help the poor. B. If I not had more time, I would help the poor. C. Unless I had more time, I wouldn’t help the poor. D. Unless I had more time, I would help the poor. 9. If you did not sneeze, he wouldn’t know that we are there. A. Unless you didn’t sneeze, he wouldn’t know that we are there. B. Unless you didn’t sneeze, he would know that we are there. C. If you sneezed, he wouldn’t know that we are there. D. Unless you sneezed, he wouldn’t know that we are there. 10. If I won a big prize in a lottery, I’d give up my job. A. Unless I won a big prize in a lottery, I would give up my job. B. Unless I won a big prize in a lottery, I wouldn’t give up my job. C. Unless I not won a big prize in a lottery, I would give up my job. D. Unless I not won a big prize in a lottery, I wouldn’t give up my job