mik học ngu hóa ai giúp mik vs

giá trị của biểu thức A= 3x (5x^2 - 2) -5x^2 ( 7+3x) - 2,5 (2 - 14x^2) với /x/=1/2 A. - 8 HOẶC -2 B. -8 HOẶC 2 C. 8 HOẶC -2 D. Đáp số khác

Một khu đất hình thang có độ dài đáy bé 40m, đáy lớn gấp rưỡi đáy bé. Chiều cao bằng 1/2 tổng độ dài hai đáy. Trên khu đất đó người ta dành 50% diện tích để xây nhà, 30% diện tích để làm vườn, phần còn lại để trồng hoa. Tính diện tích đất để xây nhà, làm vườn, trồng hoa.

2. Tìm hiểu khổ thơ 1: “Từ ấy” là thời điểm nào trong cuộc đời nhà thơ Tố Hữu? Tại sao không dùng từ "đó", "từ khi" mà dùng từ ấy? xác định những biện pháp tu từ trong khổ thơ 1 .

Mọi người làm hộ em bài 3 với em cảm ơn

tìm các số nguyên x sao cho (3-x).(x+7)=(-7) làm hộ e vs e cần gấp

Giải dùm em với ạk em cảm ơn mn nhìu❤😊

Thế nào là so sánh? Có mấy kiểu so sánh?

II. Tìmtừcócáchphátâmkhác 11.a.reader b.ready c. weather d.bread 12.a.study b.lunch c.unpopular d.music 13.a. maps b. things c. events d. cooks 14.a. stomach b. body c. comfortable d. complaint 15.a. some b. salad c. sure d. sauce 16.a. disease b. uniform c. timetable d. cyclist 17.a.table b.again c.camera d. wave 18.a. know b.show c.now d.low 19.a. what b. when c. who d. which 20.a.mention b.question c.action d. education * Choose the best answer to complete the following sentences : 21. Would you like __________ to Lan’s house? a. going b. to go c. go d. to going 22. We learn about different countries and their people in _________ class. a. Literature b. Geography c. History d. Sciences 23. In physics class the students do some __________ a. example b. exercises c. experiments d. entertainment 24. Tuan learns to repair household appliances in _________ class a. Physics b. Electonics c. Biology d. History 25. The boys are playing _________ after school. a. skipping b. marbles c. soccer d. maths 26. Mai enjoys _______ tennis. a. to play b. playing c. play d. to playing 27. Ba often _______ stamp. Maybe he is a stamp collector. a. collects b. sells c. buys d. draws 28. ________ do you watch T.V. - I sometimes watch T.V a. When b. How often c. what time d. How far 29 In the USA students ________ school uniform a. wear b. wearing c. don't wear d. not wear 30 You can borrow books from the _______ a. Bookshop b. library c. canteen d. shoes store 31.Hue lives ..... her aunt and uncle ..... Dalat. a, At / in b. with / at c. with / in d. at / at 32. Phuong .....many new friends in his new school. a. don’t have b. don’t has c. doesn’t has d. doesn’t have 33. Would you like ....a cartoon with us tonight? a. to watch b. watch c. watching d. watches 34. Lien learns to play .......... piano in her free time. a. a b. the c. an d. 0 35. Let .......... stay at home and watch TV a. we b. our c. us d. ours 36. Look! Some boys and girls ....... in the school yard. a. chat b. are chatting c. chatting d. chats 37.Students usually have a………………..each year. a. 3-months vacation b. 3-month vacations c. 3- month vacation d. 3- months vacations 38.Would you like_____ to music? a.listening b. listen c. to listen d. listens 39.In _____, We do some experiments. a.Math b. History c. Chemistry d. English 40.Ngais____a play for the school anniversary celebration. a.making b.doing c. rehearsing d. practicing 41.Lan’s grades are poor. She ____study harder a.can b.should c.maybe d.will 42.Does Nam play soccer_____recess ? a.in b.on c. at d. with 43.Look !They_________baseball. a.to play b.play c .are playing d.plays 44.Hoa ’s new school is....... than her old school. a. big b . bigger c.the biggest. d.the bigger 45. ............beautiful girl. a. what a b. what c. how d. which 46.would you like to drink .......... tea? a. much b. any c. many d. some 47. we..........a test next week. a. are going to have b. is going to have c . am going to have. 48. which grade are you......? a. at b. on c. in. d.from 49. Hung is........... student in his class. a. taller b. tallest c. the tallest. d. the taller 50. She ____________ thin and tall. a. am b. is c . are d. be 51. Let’s ____________ to the park. a. go b. going c. goes d. to go 52. Nhung often goes fishing in ____________ free time. a. her b. my c. your d. his 53. They are going ____________ Halong Bay in this summer vacation. a. visit b. visiting c. to visit d. visited 54. There are ____________ apples in the bowl. a. an b. some c. any d. a 55. Nam is ____________ boy in my class. a. the taller b. the tallest c. tallest d. taller 56. ____________ is the Great Wall? It’s between 5 and 13 meters high. a. How long b. How far c.How high d. How much

Mọi người giúp mình bài 6 bài 8 bài 9 bài 11 nhé. Cảm ơn mọi người