cho hình thang ABCDvuong tại A và D . Gọi M và trung điểm của AD. Cho biết MB vuông góc MC a) chứng minh rằng BC=AB+CD b) vẽ MH vuông góc BC CHứng minh rằng tứ giác MBHD là hình thang

1. Few student like him. He is an .....................teacher. (popular) 2. My aunt works as a ..............at a university. (chemistry) 3. When foreigncrs talk to him, he can speak English............ with them. (easy)

Tìm x 2x^2+5x+2=0

E mới lên lớp 6 nên đề bài đối vs các anh chị là dễ nhưng đối vs e là hơi khó. Viết tập hợp chữ " CHĂM HỌC CHĂM LÀM "

tìm giá trị nhỏ nhất a, 2x^2-6x b,x2^2+y^2-x+6y+10

Giúp mik với ạ Các Mod và BĐHH làm gizps ajk Hết nha 60dd

1. Reorder the words to make meaningful sentences. Question 33. you / What / do / did / last night/? / __________________________________________________ Question 34. English / have / for/ not / They / four years / learnt /./ _____________________________________________________ Question 35. blankets/ make/children/ who /for/ill /are/ very/./ should/ We ____________________________________________________ 10 Question 36. The lakes/ are/ full/ rubbish/of /, so/We should/ ask/clean/ our friends /to/them/ this Sunday. ________________________________________________________________ 2. Rewrite the sentences. Question37. He didn’t wear enough warm clothes, so he’s had a bad cold. → He’s had a bad cold because ___________________________________ Question 38. She likes walking, but she never goes to school on foot. → Although __________________________________________________ Question 39. I think you should donate books to children. → Why don’t you ____________________________________________? Question 40. I started taking part in doing voluntary work in 2015. → I have ____________________________________________________

tìm m để pt có nghiệm X^2+2x-2×|x+1|+m-1

Giải gấp giùm mùnh ngé. Cảm ơn ạ