Cho pt : x ² - 2(m + 1)x + m ² + 3m = 0 a) Tìm m để pt có 2 nghiệm x1 x2 b) Trong trường hợp pt có 2 nghiệm x1 x2 - Tìm giá trị nhỏ nhất của bt A = x1 ² + x2 ²

XI. Fill in the blank with a correct preposition (5pts) 1. My father is interested____________ playing volleyball. 2. Mr Bean spent his whole life struggle_____________ his heart attack. 3.LanAnhinsited _________________buying a good handbag. 4. My students’ve lived in this village_____________ 10 years. 5. Hold____________ a minute while I get my breath back. 6. Giang’s parents are tired______________ living near the garbage dump. 7. Are you free_______________ Monday evening. 8. Linh’s still looking______________ a job. 9. The increase in population has led_______________ overcrowding in many cities. 10.Ngoc Anh tried _________________the new dress but it didn’t fit.

X. Read the passage and choose the best answer among A, B, C or D to fill in each blank. (5pts). John Smith is a very busy man. He is 60 years old and he has a lot of jobs. He is a policeman, a fireman, a school bus driver, a postman, a taxi driver, a boatman, an ambulance man, an accountant, a petrol attendant, a barman and an undertaker. Also, he and his wife, Susan, have a shop and a small hotel. John lives and works on the island of Gingham in the west of Scotland. Only one hundred and twenty people live there but in summer this number will be doubled because of tourists who come by boat every day. Every day John gets up at 6.00 and makes breakfast for the hotel guests. At 8.00, he drives the island’s children to school. At 9.00, he collects the post from the boat and delivers it to all the houses on the island. He also delivers the beer to the island’s only pub. Then he helps Susan in the shop. He says, “Susan likes being busy, too. We never have holidays and we do not like watching television. In the evenings, Susan makes supper and I do the accounts. At 10.00, we have a glass of wine and then we go to bed. Perhaps our life isn’t very exciting, but we like it”. 1. John Smith is a very busy man because____________. A. he lives and works on the island B. he is 60 years old C. he has thirteen jobs D. he is a policeman and a taxi driver. 2. In summer, about ____________ people and tourists are on the island of Gingham. A. 120 B. 60 C. 150 D. 240 3. He usually takes the island’s children to school by ____________. A. bus B. taxi C. boat D. ambulance 4. What does John do in the evenings? ~ ____________. A. He makes supper B. He does the accounts C. He goes to bed early D. He watches television 5. They don’t watch television in the evenings because ____________. A. They have a glass of wine B. They have lots of things to do C. They are always tired in the evening D. They don’t like it

Cho em xin ý kiến về phần này ạ

Cho khối lượng riêng của nhôm sắt chi đá lần lượt là 2700kg/mét khối ,7800kg/ mét khối,11300kg/ mét khối ,2600kg/ mét khối .Một khối đồng chất có thể tích là 300 cm khối ,nặng 810h làm bằng chất gì

IX. Read the passage and choose the best answer among A, B, C or D for each questions. (5pts) These day most people, especially young girls, like (1)………………slim. Our grandparents’ tastes were different (2)……………………ours but nowadays (3)……………………………seems to enjoys (4)………………………..fat people. The only thing (5)………………………..is wrong with this is what a (6)…………….. said to me the other days; “I don’t mind (7)……………………these foods if they will help me (8)………………….weight but why do they taste so awful ?” The reason (9)………………….this is that the manufacturers have to include a lot of vitamins to satisfy the law , so the only sensible advice I could give my friend was “Eat normal food , but (10) ………………less” 1. A. to looked B. to look C. they look D. look 2. A. from B. of C. as D. with 3. A. anymore B. none C. everyone D. no one 4. A. to look at B. looking C. looking at D. to look 5. A. it B. that C. what D. who 6. A. friend of mine B. my friend C. friend of me D. friend of my 7. A. to eat B. eat C. eating D. the eating 8. A. gain B. put on C. loose D. lose 9. A. of B. why C. for D. that 10.A. eat B. to eat C. eating D. be eating

Giúp mik vs mik cần ngay bài 16,17 Mik sẽ vote 5* Cảm ơn

1 hình chử nhật ABCD có chiều dài 12,5 m chiều rộng bằng 2 /5 chiều dài . người ta cắt 1 phần đất AMD có dạng hình tam giác. biết DM=1/3 CD Tính a) diện tích phần đất đã cắt ? b) diện tích đất còn lại ?

VIII. Each of the following sentences contains one mistake. Find and correct it. (5pts) 1. My father along with his friend are drinking tea in the living room. ____________________ 2. He has less friends in his class now than he had last year. ____________________ 3. I remember that I have something new to told you. ____________________ 4. It’s important for every students to have a book. _____________________ 5. He stopped to smoke because cigarettes are harmful to his health. _____________________ 6. This is my two child. The first is at home. . _____________________ 7. We live in a four - rooms house in the country. . _____________________ 8. When I am sick, my Mom looks at me. _____________________ 9. There are a few empty apartments near to my house. _____________________ 10. She was confused on the dates. _____________________

Cảm nhận bài thơ sau : Con thuyền rời bến sang Hiên Xuôi dòng sông Cái, ngược trièn sông Bung Chập chùng thác Lửa thác Chông Thác Dài ,thác Khó,thác Ông thác Bà Thác,bao nhiêu thác,cũng qua Thênh thang là chiếc thuyền ta trên đời (Tố Hữu,Nước non ngàn dặm)