(P): y=x² (d): y= 2(m+1)+4 Chứng minh d luôn cắt P tại 2 điểm phân biệt

(P): y=1/2x²

(d): y=(m+1)x+2

Chứng minh (d) luôn cắt (P) tại 2 điểm phân biệt với mọi m

1. The school will constantly tailor its curriculum to meet changes in society

--> The school's curriculum

Cấu trúc:

2. "How much do you think it will cost? He said to me"

--> She asked me

Cấu trúc:

Correct the mistakes

If you always wear a face mask, you would prevent the spread of Covid-19

A. always

B. would

C. prevent

D. of

Cho đường tròn (O;R) với dây BC cố định (BC không đi qua tâm). Qua O dựng bán kính OA vuông góc với dây BC tại I. Lấy điểm E thuộc cung lớn BC. Nối AE cắt BC tại D. Hạ CH vuông góc với AE tại H, CH cắt EB tại M

a. Cm: 4 điểm A,I,H,C cùng thuộc một đường tròn

b. Cm: AD.AE=AB²

CLOSEST

She's very good at _taking off_ her teacher

A. looking after

B. seeing

C. imitating

D. improving

OPPOSITE

1. To be honest, I go to the museums _once in a blue moon

A. occasionally

B. seldom

C. regularly

D. sometimes

2. Use water _economically_ and keep water clean

A. plentifully

B. well

C. few

D. many

Ms.Jenny/not allow/employees/eat/office/. ---> Ms. Jenny.................

1. An asked me: "Did you decide to take an English course before going to America?" A. An asked me whether I had decided to take an English course before going to America. B. An asked me if I have decided to take an English course before going to America C. An asked me whether I decided to take an English course before going to America. D. An asked me if I had decided to take an English course before going to America. 2. They have offered my sister two jobs at the same time. A. My sister has been offer two jobs at the same time. B. My sister has been offered two jobs at the same time. C. Two jobs has been offered by my sister at the same time. D. Two jobs have been offered by my sister at the same time. 3. We/help/the men/whose car/break down/near/home village. ---> 4. If/Minh/good/drawing, he/could/become/architect. ---> 5. While the students were discussing their future jobs, the teacher entered the classroom. A. While the students were discussing their future jobs the teacher entered the classroom. B. The students were discussing their future jobs while the teacher entered the classroom. C. While the students were discussing their future jobs, the teacher entered the classroom. D. While the students discussed their future jobs, the teacher was entering the classroom.

1. She ....... to the cinema because she ........ Pirates of the Caribbean.

A. hadn't come - has seen

B. didn't come - saw

C. hadn't come - saw

D. didn't come - had seen

2. Would you mind ...... up? I can't hear you properly because I'm a bit deaf.

A. shouting

B. saying

C. talking

D. speaking

3. The school's curriculum ........ to meet changes in society.

A. is going to tailor

B. will tailor

C. will be tailored

D. is tailoring

4. After August, heavy rains cause river levels to rise and make the cave inaccessible.

A. impossible to require

B. hard to reach

C. difficult to manage

D. in the end

Phuong drives more quickly than Hien A. Phuong drives less quickly than Hien B. Hien drives less quickly than Phuong C. Hien drives less quickly as Phuong D. Hien is drives less quickly than Phuong