5. Một thửa ruộng hình thang có đáy lớn 75,6m; đáy bé 62,4m và chiều cao 40m. Biết rằng 2/5 diện tích thửa ruộng trồng ngô, 1/3 diện tích trồng khoai, còn lại trồng đậu phộng. Tính diện tích trồng mỗi loại cây trên? Một hình thang có chiều cao 34dm. Đáy lớn gấp đôi đáy bé. Diện tích hình thang bằng diện tích một hình chữ nhật chiều dài 68dm; chiều rộng 30dm. Tính độ dài mỗi đáy hình thang?

V. Find and correct the mistakes. 1. We didn’t used to have a colorful TV, but we do now. A B C D 2. When my baby sister is younger, she didn’t use to eat pizza. A B C D 3. It’s about 500 meters at my house to school. A B C D 4. On my way home get school, I sometimes see a train pass by. A B C D 5. Did he use to crying all night when his father died. A B C D B. READING VI. Read the passage and fill in the blank with the missing word. Transport in London is expensive. The fare depends on the length of the journey; you cannot buy or book tickets in advance. Children under sixteen pay half, and those under five travel free. You usually buy bus tickets from the conductor, but some buses you pay the driver. Most London buses are double-deckers. On the underground railway (or tube) you buy your ticket from the machine or ticket office, and give it up at the end of the journey. Not all trains from one platform go to the same place, so watch the signs. The last train leaves at 1.15 p.m. 1. The fare depends on the ……………. of the journey. A. way B. distance C. time 2. Children under five don’t have to ……………. when they use public transport. A. give B. pay C. buy 3. You should buy bus tickets from the………… but on some buses you pay the driver. A. machine B. driver C. conductor 4. On the underground railway (or tube) you buy your ticket ……………. the machine or ticket office. A. from B. in C. on 5.Not all trains from one ………… go to the same place, so watch the signs. A. station B. platform C. railway VII. Read the passage and answer the following questions. The streets are crowded with traffic. Taxis are bringing tired people from the airport and the train stations to the hotels. They hope to sleep a few hours before their busy day in the big city. Trucks are bringing fresh fruit and vegetables into the city. Ships are bringing food and fuel to the harbor. By seven o’clock in the morning, the streets are filled again with people. Millions of people live in the big city, and millions of people who work in the big city live in the suburbs, the commuters, are hurrying to get to their offices. Everyone is in a hurry. Some stop only to drink a cup of coffee. Others stop to buy a morning paper or to have breakfast. The noise of traffic gets louder. The policemen blow their whistles to stop the traffic or to hurry it alone. Answer the questions: 1. Where do taxis often take people from? ………………………………………………………………….. 2. What are trucks bringing? And what about ships? ………………………………………………………………….. 3. Who are commuters? ………………………………………………………………….. 4. What do people often do when they are in a hurry in the early morning? ………………………………………………………………….. 5. What do the policemen do to control the traffic? ………………………………………………………………….. C. WRITING VIII. Reorder the following words to make meaningful sentences. 1. It/ travel/ is/ rush/ because/ in/ so/ on/ to/ traffic/ road/ tiring/ hours/ jams/ of. …………………………………………………………………..…………… ……………………………………… 2. it/ hour/ to/ took/ office/ Yesterday/ more/ my/ than/ mother/ an/ to/ go/ her. …………………………………………………………………..…………… 3. from/ Ho Chi Minh city/ Travelling/ not/ time-consuming/ to/ by/ Hanoi/ airplane/ is. …………………………………………………………………..…………… 4. The/ more/ months/ project/ team/ than/ three/ completing/ spent/ this. …………………………………………………………………..…………… 5. buy/ 50.000VND/ It/ visitor/ often/ entrance/ ticket/ costs/ a/ only/ to/ an. …………………………………………………………………..…………… GIÚP MÌNH VỚI Ạ MÌNH ĐANG CẦN GẤP

vẽ pic dưới . full tùy ạ - Hóng các Idol :>

Thu gọn các biểu thức sau: a)7x-19x+6x b)-ab-ab

viết các phân số sau thành phân số có mẫu số bằng nhau: 1/2;2/3;3/4

3) Cách đây 4 năm,tổng số tuổi của hai chị em 15 tuổi.Biết rằng chị hơn em 5 tuổi.Tính tuổi chị ,tuổi em hiện nay.

Cho đường tròn (O). Từ điểm A bên ngoài đường tròn vẽ hai tiếp tuyến AB, AC với đường tròn (B, C là các tiếp điểm). Đường thẳng kẻ qua C song song với AB cắt đường tròn (O) ở D, AD cắt đường tròn (O) ở M, CM cắt AB ở N. Chứng minh: a) Góc BAD = Góc ACN b) AN2 = NM.NC; c) N là trung điểm của AB. Giúp mk với :3 hứa sẽ vote 5 sao

A.VOCABULARY AND GRAMMAR I.Put the word/ phrase in each space to complete the following sentences. zebra crossing railway station speed limit traffic jams road user means of transport driving license safety helmet road safety train tickets 1.The government has introduced a new ................................... campaign in an attempt to reduce the number of road accidents. 2. A ............................... is a hard hat which covers and protects the whole head, worn especially by the motorcyclist. 3. We looked on our map to find the way to the ................................... 4. Road works have caused ................................... throughout the city centre. 5. A ................................ is a place on a road at which vehicles must stop to allow people to walk across the road. 6. You should know the regulations in order to become a good ....................... 7. A ...................... is an official document that shows you are able to drive. 8. Slow down because you’re breaking the ................................... 9. We needed to get to Ha Noi, but we had no ................................... 10. I have two ……………. available to go to Lao Cai. Would you like to go with me to Sa Pa? II. Find some more words that go with the given verbs. 1. get off …………………… 1.drive ………………………….. 2. park ……………………… 2. sail…………………………….. 3. catch………………………. 3. fly ……………………………… 4. board ………………………. 4. get……………………………… 5. ride …………………………. 5. get on…………………………… III. Choose the best answer (A, B, C or D). 1. There ……………… a MRT station here, but it has disappeared. A. were B. used to having C. use to have D. used to be 2. ……………… does it take to go from Ha Noi to Pleiku by plane? A. How much B. How many C. How long D. How far 3. My little brother used to …………… his homework early in the evening. A. do B. does C. doing D. did 4. If people ……………… the rules, there are no more accidents. A. follow B. take care of C. obey D. remember 5. You should ……………… right and left when you go across the road. A. see B. look C. be D. take 6. Hurry up or we can’t ……………… the last bus home. A. keep B. follow C. go D. catch 7. I used to go to school ……………… A. with bike B. by foot C. in car D. by bus 8. Public ……………… in my town is good and cheap. A. travel B. journey C. tour D. transport 9. When there is a traffic jam, it ………… me a very long time to go home. A. takes B. costs C. spends D. lasts 10. Yesterday Richard and Peter……………… round West Lake. It took them an hour. A. cycle B. cycles C. cycling D. cycled 11. Cyclists and motorists have to wear a ……………… when they ride a motorbike. A. cap B. mask C. helmet D. hard hat 12. He forgot to give a ………………before he turned left and got a ticket. A. hand B. signal C. sign D. light 13. All of us have to obey …………… strictly. A. traffic B. traffic rules C. traffic jam D. regular 14.We should wait for the traffic lights ………… before we cross the street. A. turn yellow B. turn green C. to turn yellow D. to turn green 15. Drivers have to ……………… your seatbelt whenever they drive. A. tie B. fasten C. put on D. put 16.I ……………… marbles when I was young, but now I didn’t. A. play B. used to play C. have played D. didn’t use to play 17.……… is it from your house to the nearest bus stop?” - “About 50 metres”. A. How much B. How long C. How far D. How often 18. Minh used to ………………jigsaw puzzles in his spare time. A. do B. does C. doing D. did 19. Public ………………in this city is quite good, and it’s not expensive. A. vehicle B. travel C. transport D. journey 20. It’s about 2 kilometers ………………my house ………………school. A. between/and B. from/to C. between/to D. from/ and IV. Choose the best answer to complete the passage. When you are in Hong Kong, you can go about by taxi, by tram, by bus, or (1) ................. (in/ by/ on/ with) underground. I myself prefer the underground (2) ................. (because/ when/ so/ but) it is fast, easy and cheap. There are (3) ................. (some/ a lot/ many/ few) trams and buses in Hong Kong, and one cannot drive along the road (4) ................. (quick/ quicker/ quickly/ quickest) and without many stops. The underground is therefore usually quicker (5) ................. (as/ than/ so/ like) taxis or buses. If you do not know Hong Kong very well, it is very difficult (6) ................. (finding/ to find/ found/ to finding) the bus you want. You can take a taxi, but it is (7) ................. (more/ much/ as/ too) expensive than the underground or a bus. On the underground you find good maps that tell you the names of the stations and show you (8) ................. (who/ when/ what/ how) to get to them so that it is easy to find your way.

350:[9^2-(3-1)^2]-120 giúp mình với!!!

Cần bao nhiêu lít khí Clo (đktc) phản ứng với dd NaOH để thu được 1kg dd nước Gia-ven có nồng độ NaClO là 14,9%. Biết hiệu suất phản ứng điều chế là 80%.