7/ Tìm GTNN của biểu thức: a) `A=x^2-8x+10` b) `B=4x^2-12x-5` c) `C=x^2 -x +1/2` Nl: nhanh, chi tiết, đúng nha, (bít làm nhưng lười nghĩ;-;)

Giúp mình nhé Có giải thích các bước giải rõ ràng @Changg

BÀI TẬP THỰC HÀNH GIỚI TỪ CHỈ NƠI CHỐN IN / ON / AT 1. She was standing all by herself________ the bus stop. 2. He was sitting_________the top of the stairs. 3. There is such a mess ___________the kitchen! 4. There were many beautiful flowers_________ the garden. 5. We had dinner ____________a very nice restaurant. 6. They are dancing _____________the street! 7. We used to live ___________the third floor. 8. They live ___________France. 9. Toni will meet us ____________the corner of the street. 10. Times Square is ___________New York.

Viết MỞ ĐOẠN bài văn bày tỏ suy nghĩ của em về vai trò tình anh em trong cuộc đời mỗi người `->` Y/c: từ 4- 5 dòng

repost nè, mong mọi người giúp mình nhen=((((( huhuhu

Toán 8 , rút gọn mình đang gấp , ai làm đúng mình sẽ vote 5 sao

V. Choose the correct sentence from the four options a, b, c or d 31 Lucia/ said/ they/ be not/ going to/ the/ cinema/ that night a. Lucia said that they aren’t going to the cinema that night. b. Lucia said that they wasn’t going to the cinema that night. c. Lucia said that they weren’t going to the cinema that night. d. Lucia said that they hadn’t been going to the cinema that night. 32 Science/ play/ important/ role/ our/ daily life. a. Science plays an important role on our daily life. b. Science plays an important role in our daily life. c. Science plays the important role on our daily life. d. Science plays the important role in our daily life. 33 Viet/ said/ he/ would/ be doing/ experiment/ 10 o’clock/ following day. a. Viet said that he would be doing a experiment at 10 o’clock following day. b. Viet said he would be doing an experiment at 10 o’clock following day. c. Viet said he would be doing a experiment at 10 o’clock the following day. d. Viet said that he would be doing an experiment at 10 o’clock the following day 34 I/ can’t/ imagine/ life/ without/ science/ technology. a. I can’t imagine our life without science but technology. b. I can’t imagine our life without science and technology. c. I can’t imagine our life without science so technology. d. I can’t imagine our life without science nor technology. 35 Parents/ not/ allow/ children/ play/ computer games/ long period of time. a. Parents don’t allow children play computer games for a long period of time. b. Parents don’t allow children playing computer games for a long period of time. c. Parents don’t allow children to play computer games for a long period of time. d. Parents don’t allow children played computer games for a long period of time 36 Nuclear/ plants/ a lot of/ don’t/ power/ require/ space. a. Nuclear power plants don’t require a lot of space. b. Nuclear power a lot of plants don’t require space. c. Nuclear power don’t require a lot of space plants. d. Nuclear plants don’t require a lot of power space. 37 He/ that/ was/ a/ said/ robot/ hire/ he/ the/ going to/ following Saturday. a. He said that he was going to hire a robot the following Saturday. b. He said that he was going to hire a following robot the Saturday. c. He said he was going to hire that a robot the following Saturday. d. He said that a robot was going to hire he the following Saturday 38 Wrong/ big/ decisions/ a/ in/ caused/ nuclear/ Chernobyl/ explosion a. Wrong decisions in a big nuclear explosion caused Chernobyl. b. Wrong caused decisions in Chernobyl a big nuclear explosion. c. Wrong decisions in Chernobyl caused a big nuclear explosion. d. Wrong decisions in Chernobyl caused a big explosion nuclear 39 We/ before/ seen/ have/ Physical/ never/ this/ experiment. a. We have never before seen this Physical experiment. b. We have never Physical experiment seen this before. c. We have seen never this Physical experiment before. d. We have never seen this Physical experiment before. 40 You/ keep/ you/ have/ want/ to/ stay/ to/ quiet/ here/ if. a. You have to keep quiet if you want to stay here. b. You have to want to keep quiet if you stay here. c. You have to stay here if you want to keep quiet. d. You have to keep quiet you if want to stay here. VI. Choose the word or phrase (A, B, c or D) that best fits the blank space in the following passage? Computers are helpful (41) __________ many ways. First, they are fast. They can work with information even (42) __________ quickly than a person. Second, computers can work with a lot of information at the same time. Third, they can (43) __________ information for a long time. They do not forget things that the common people do. (44) __________ , computers are almost always correct. They are not perfect, but they usually do not (45) __________ mistakes. Recently, it is important (46) __________ about computers. There are a number of things to learn. Some companies have (47) __________ at work. In addition, most diversities (48) __________ day and night courses in Computer Science. Another way to learn is from a book, or from a friend. After a few hours of practice, you can (49) __________ with computers. You may not be an expert, but you can have (50) __________. 41a. at b. on c. in d. over 42a. more b. rather c. much d. less 43a. hold b. keep c. stay d. carry 44a. Moreover b. However c. Therefore d. Nevertheless 45a. do b. make c. have d. take 46a. know b. knowing c. to know d. knew 47a. discussions b. meetings c. schools d. classes 48a. send b. spend c. bring d. offer 49a. work b. make c. use d. take 50a. for fun b. funny c. enjoy d. fun

IV. Rewrite the sentences so that they are nearest in meaning to the sentence printed before them. 26 Peter said: “I will try to learn hard to pass the entrance exam.” Peter said that 27 It’s fascinating to watch science fiction movies. Watching 28 I haven’t been to this gallery before. This is the first time 29 My smart phone is so convenient that I bring it everywhere. It is such 30 “The band is going to have a comeback next month” The producer said The producer said that

Vẽ chibi .

BÀI TẬP THỰC HÀNH GIỚI TỪ CHỈ NƠI CHỐN IN / ON / AT 1. She stood ___________the center of the stage. 2. There is always lots of action ___________Times Square. 3. The books were _______________the shelf. 4. The diagram is ____________page 12. 5. The dinner will be _______________Mark's. 6. The eggs are ________________the box. 7. The food is ____________the table. 8. The keys were not ____________his pocket. 9. The taxi will be waiting _____________the hotel. 10. There is a beautiful garden _________the back of the house.