Cho hàm số y=f(x)=3x-8 a, tính f(3) ; f(-2) b, tìm x Khi biết giá trị tuong ứng y là 1

Exercise 5: Choose the best option to fill in the blank. 1. There used to be fewer people and .................. on the roads. A. roofs B. helmets C. helicopters D. vehicles 2. Do you know the .................. in the UK is to keep to the left? A. traffic light B. traffic rule C. traffic jam D. speed limit 3. It is dangerous to ride a motorbike without a .................. A. helmet B. triangle C. tricycle D. circle 4. In Hanoi, during rush hour, some road users ride their motorbikes on the .................. A. driving licence B. lane C. pavement D. seat belt 5. Traffic is terrible during the .................. when everyone is in a hurry to get to work or come back home. A. traffic light B. road sign C. traffic rule D. rush hour 6. The ................ for motorcycles is 40 km/h in towns and 60 km/h outside urban areas. A. speed limit B. driving licence C. traffic rule D. traffic light 7. You must .................. the traffic rules in order to avoid accidents. A. park B. obey C. reverse D. warn 8. It takes us more than three hours to drive across those .................. roads. A. wide B. safely C. right-handed D. bumpy 9. You need a driving licence to .................. A. drive a car B. ride a bike C. get on the bus D. get off the train 10. The large supermarkets in Vietnam often let you .................. free. A. park B. obey C. warn D. find 11. Some vehicles beep when they .................. to warn those behind. A. ride B. reverse C. drive D. sail 12. After school, children queue up and wait for the bus .................. on the pavement in front of the school. A. safe B. bumpy C. safety D. safely

Biết: $x^{}$ + $y^{}$ = -5 Và $xy^{}$ = 6 Tính: $(x^{3}+y^{3}+34)^{2019}$

Huhu Bài Khó QUá Tời GIúp Iem Với

Bài 3(3 điểm ) Cho tam giác ABC , tia Ax đi qua trung điểm M của cạnh BC. Kẻ BE, CF vuông góc với Ax ( E,F thuộc Ax) . Chứng minh rằng . a. tam giác BME = tam giác CMF. b. BE =CF

mn ơi giúp mk vs mk đang cần gấp

Hãy tổng kết về cây có hoa -.đặc điểm -chức năng

Mọi người giải giúp mình bài này với!!

Tiếng anh lớp 7 nha, mn viết ngắn thôi nha Talk about a traditional art.

VI.Read the passage and choose the correct answers (A,B,C or D ) to fill in the blanks. Susan and Minh are best friends even though they havenever seen each other in person.They first encountered (34) ______ a pen pal programme. Minh is from Viet Nam while Susan (35) _____ in the United States.At the beginning they only (36) ______ letters. Over time, they began talking using emails and phone calls. Two months after their first letter, Susan call Minh up via a video call application.It’s the first time they saw each other’s face.Susan is a tall girl with a blonde hair and Minh is a tanned chubby boy with curly dark hair. They became best friends (37) _______ their different personalities.Minh is shy, reserved while Susan is talkative and outgoing. However, they share many interests including their love for science fiction TV shows. This summer, Minh will visit Susan and they are going to (38) ______ each other in person for the first time. 34. A. on B. by C. through D. with 35. A. appears B. works C. goes D. lives 36. A. exchange B. exchanged C. are exchanging D. are exchanged 37. A. although B. but C. despite D. however 38. A. see B. seeing C. have seen D. be seen VII.Read the passage and choose the correct answers. Boyz4Now is a four-member international boy band. The band, which is incredibly popular among teenage girls,became a sensation after the release of their first album. Four members of the group incliding Mike, Justin, Henry and Zack are best friends and they used to go to the same high school. Being members of the school choir,all members shared the same passion for singing. They decided to form a boy band after graduating high school. They are very attractive and charming, especially Zack who is the leader and the most popular member of the band. His dark hair and tall frame always make him stand out from the rest of the band.The talented and hard-working. Boyz4Now has sold millions of albums.Their latest album will be dropped this Friday and they are going on tour around the country shortly after that. 39. What is the best title of the passage? A. The First Album of Boyz4Now. B. Boyz4Now, A popular Boy Band. C. Zack,Leader of Boyz4Now. D. Tour of Boyz4Now. 40. What is the meaning of the word “sensation” underlined in the passage? A. Interest among a lot of people. B. Passion for singing. C. International popularity. D. Attraction and charm. 41. Which of the following is TRUE about the members of Boyz4Now? A. Zack is more popular because of his voice. B. Mike,Justin and Henry are not as attractive as Zack. C. Mike,Justin,Henry and Zack formed Boyz4Now when they began high school. D. Mike,Justin,Henry and Zack joined the school choir together. 42. When does the tour around the country of Boyz4Now take place? A. Right after their latest album is released. B. Shortly after their first album is released. C. By this Friday. D. Before this Friday. 43. Which of the following is NOT discussed in the passage? A. The four members of Boyz4Now went to the same school. B. The band debuted after the four boys graduated. C. Mike, Justin, Henry and Zack come from the same country. D. Boyz4Now has earnedfrom millions of albums.