1) Tìm a a) a x 3,1 + a x 6,9 = 30,4 b) a : 1,5 + 0,45 = 7,65 2) Tính a) 3576 x 76 - 2846 = b) 78,65 - 13,7 x 4,2= c) 5/6 + 2/5 x 5/8 =

cho tam giác ABC vuông tại A đường phân giác của góc ABC cắt AC tại D , gọi E là hình chiếu vuông góc của D trên BC , tia ED cắt tia BA tại F . a, tính AD, CD nếu AB=6cm và BC=10cm b,CM:tam giác ABC đồng dạng với tam giác EDC c,CM:FA.FB=FD.FE giải hộ mình với

😊giải hộ tớ ikk d) 3x/2- 11/4= -7/8. 32/56

Có công thức lA(x)l+lB(x)l=m (m>0) Tại sao m>0 mà ko phải m≥0

Là học sinh em cần làm gì để bảo vệ môi trường và sử dụng hợp lý tài nguyên thiên nhiên ?

Trên cùng một nửa mặt phẳng bờ chưa tia ox vẽ các tia oy và ớt sao cho xot=80 xoy=40 a chứng tỏ tia oy là tia phân giác của xot vẽ ox là tia đối của tia ox tính xot,xoy

Bài1 Viet lai cau 1 These shoes will have tobe repaired Richard will have............................... 2 Bill never does any things if you don't tell him what tp do Unless........................................... 3 "Why don't you put a better lock on the door,Mai?''Minh asked Minh suggested................................... 4 Keeping calm is the secret of passing your driving test As long as....................... 5 When she heard the news she broke down On.................. 6 She'd rather have Italian foot than French foot She prefers............. 7 We couldn't get nearer because of the police The police prevented.............. 8 Althought both of his legs were beoken in the crash,he managed to get out of the car before it exploded Despite his................................... 9 Every heard about the accident befotr I did I was the..................... 10 It's is common knowledge that he has been in prso sevaral times He is known............................. BAIF2 CHO DẠNG ĐÚNG CỦA TỪ TRONG NGOẶC 1We'll live in a happier and ................life if we keep our environment clean(health) 2 Thirty years ago my hometown was small.Now it has turned into an...........................city(industry) 3 Islam is the ....................religion of Malaysia(office) 4 Don't depend of him he is a very ....................person(rely) 5 She is extremely ...........................about the history (know) BÀI 4 CHIA ĐỘNG TỪ 1 It' hight time that you (get)...........down to more serious work 2 That man (stand).............at the bus stop for the last half hour.Shall I tell him that the last bus already(go).............? 3 By next September I (pay)................4000 pounds in income tax 4 If he (leave).............home five minutes earlier ,he (sit).......................here now 5 At this time next week they (sit)...................in the train on their way to Paris GIẢI GIÚP MIK VS Ạ SẼ ĐÁNH GIÁ CÂU TL HÂY NHẤT+VOTE

Emmmmmmmmmmmmmmmmmmmmmmmnmmmmmmmm

Chia động từ trong ngoặc My friend(be).......sick since yesterday.

2. Choose the best answer:(cho mình xin câu giải thích cho mỗi câu trả lời nhé! Cám ơn ạ!) 1. What is a............ contest ? A. fire/make ; B. fire/making ; C. fires/making ; D. fires/making 2. How............ the fire.........? A. do/make ; B. do/ made ; C. is/make ; D. is/made 3. It is made by ............ pieces of bamboos together A. rub ; B. rubbing ; C. to rub ; D. rubbed 4. He said that he .......... come .......... A. will/tomorrow ; B. will/the following day ; C. would/tomorrow ; D. would / the following day 5. The director ........... me that he was ........... to hepl you A. said/ pleased ; B. said/pleasing ; C. told/pleased ; D. told/pleasing 6. Let's ............. to the festival together 7. Is there ...........you want me to do while you're out A. anything ; B. something ; C. any things ; D. some things 8. Vietnam is a country in South East Asia A. rice- exporting ; B. rice-export ; C. rices-exporting ; D. rices-export 9. It ............. tomorrow A. will be done ; B. has been done ; C. was done ; D. is being done 10. What did he ............ he........ then? A. said/did ; B. said/was doing ; C. say/doing ; C. say/was doing 11. She said that she ............ come .......... with her mother A. could/there ; B. could/ here ; C. can/there ; D. can/here 12. Did he say he ............ go out ..............? A.will/tonight ; B. will/that night ; C. would/tonight ; D. would /that night