cho góc xAy=50 và điểm B thuộc Ay.Trên nửa mp bờ Ay ko chứa tia Ax,vẽ tia Bz sao cho góc ABz=130 lấy điểm C thuộc Bz .Trên nửa mp bờBz ko chứa điểm A,vẽ tia Ct sao cho BCt=80 .Chứng minh rằng Ax//Ct

Nêu cảm nghĩ về những đóng góp của thầy cô cho tương lai, đất nước ( 10-15 dòng)

Từ các số 0 1 2 3 4 5 6 lập được bao nhiêu chữ số tự nhiên gồm 4 chữ số khác nhau.

giúp em với ạ em cần gấp lắm rồiii ý:((

làm hết phần toán ngoại trừ phần đặt tính

Viết bài văn biểu cảm về ánh nắng sân trường

cho /3x-4y/+<3y-2z>^2=0 và x^2+2y^2+z^2=434.Tìm x,y,z?

Cho đường thẳng d có phương trình: mx + (m + 2)y - 1 = 0. Đường thẳng d luôn đi qua một điểm cố định tại tọa độ? A. (-1; -1/2) B. (-1; 1/2) C. (-1/2 ; -1) D. (1/2; 1)

Bài 1 : Choose the best one ( A,B,C,D ) to complete the sentence 1 No one else in the class plays the guitar ............. John A as well B as far as C so well as D as soon as 2 The Brit School is the most famous .......... arts school in Britain A performing B performance C perform D performed 3 Jane is not .............her brother A more intelligent as B intelligent as C so intelligent as D so intelligent that 4 Since the 1970s , the festival in Glastonbury has taken .............almost every year and has grown in size A part B place C note D notice 5 He drives as .............. his father does A careful as B more carefully C the most careful D carefully as 6 Dong Ho paintings are made on ............paper with beautiful .........colors A traditional - nature B tradition - natural C tradition - nature D traditional- natural 7 I will be there ......... I can A sooner as B no sooner as C as soon as D soonest as 8 My village is not ........ it was ten years ago A the same as B the same to C same as D the same 9 the villagers are.............they were years ago . There is no change at all A differently from B not as friendly as C as friend as D as friendly as 10 Water puppetry ...........in the 11 century in the villages of the Red River Delta of North Viet Nam A originated B formed C started D began 11 the puppet shows present ............themes of Vietnamese villages A city B urban C village D rural 12 No one in my class is ........... beautiful ...........her A as-as B more -as C as -than D the - more 13 the group is .......... for their albums and tours around the world A well- knows B know-how C well -prepared D well - known 14 going by train is not .............. convenient as going by car A so B as C more D A and B are correct 15 the performances of puppetry show ................ in the countryside and ........ A everyday life - folk rock B every day life - folk people C everyday life - folk tales D every day life - folk stories

Biểu cảm về loài cây em yêu Các bạn giúp mình với ạ Đừng chép mạng ạ Em cảm ơn trước