Cho tam giác ABC, AB=AC, phân giác góc B cắt AC tại M, phân giác góc C cắt AB tại N. a) Chứng minh: MN//BC b) Tính độ dài AM, MC, MN nếu AB=5cm, BC=6cm c) Tính diện tích tam giác ABC, AMN ?

Complete the sentences with and , so , but or because 1 . I didn't feel well .................. i stayed at home 2 . He liked her................... she was happy 3 . I liked spain .................. i wanted to go home 4 . She like swimming .............. jogging 5 . We were late ............... there was an accident

Giải thích câu 86,87 theo tự luận

Hãy vẽ sơ đồ tư duy trình bày đặc điểm của văn bản nghị luận.

giải hộ mình bài 6,7,8,9,10,11 với ạ :( Cảm ơn trước ạ !

2x^2-3x-2m^2 có 2 nghiêm trái dấu A.m>0 B.m<0 C.m>1/2 D.m khác 0

Bạn nhau lại cho mình hết bài tập làm cho cái tiền hết ngày nếu bạn nào lại không dạy được thì không được tiền nha nhớ lại cho mình bài 4 đến bài 9 nhànhững kênh bài 4 biến và chín đuôi bạn nào không làm đầy đủ mình không cho tiền đâu

Complete these sentences with comparative or superlative: 1. This dress is the ………………………………of three dresses.(expensive) 2. Vietnamese students work ……………hours than American sts (few) 3. He has ……………………………….. money than his wife. (much) 4. Summer holiday is …………than tet holiday. It’s the ……… holiday(long) 5. Tom is ………………………… than Peter (intelligent) Rewrite the sentence without changing meaning. 1/ What about going to the movies? → Why . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2/ Where does she live? → What . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/ What do you do? → What . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4/ The dress is very old. → What . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ! 5/ What subject does Mary like best? → What is . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Read and match A 1. What are you doing? 2. What do you usually do after school? 3. What should I do to have a good health? 4. Why don’t you take a rest? You look tired. 5. What sport does your brother like doing? 6. What are you going to do after the course? 7. Should we go to the beach? It’s a beautiful day. 8. How often does he play video games? B a. I’m going to get a job. b. I often watch TV. c. Twenty minutes a day. d. Yes, may be I will. e. You should take physical exercises. f. That’s a good idea. Let’s buy some food and drinks. g. I’m playing the guitar. h. My brother likes playing soccer.

Tại sao đa số lớp cá sụn lại sống ở nước mặn và nước lợ?

Tìm số nguyên x, biết: a) | x + 2010 | = 2011 b) 2 < | x- 2011| < 5 . Tìm x a) 2 $2^{x+5}$ = 128 3.$3^{x}$ = 81 b) 3.$3^{x}$=81 c) 25+$5^{x}$. $5^{x}$ = 650 d) $3^{x}$.$3^{x+1}$-81=162