Cho Tam giác ABC có AH là đường cao có góc C =30° AB= a

a tính BC,AH và AC theo a

b Tính SABC

Cho (d1) y=x+2 (d2) y=-2x+2

a vẽ (d1) và (d2)

b tìm giao điểm A

c tìm tọa độ B là giao điểm của (d1) với trục ox tìm giao điểm C của (d2) vs trucn ox

phân biệt các lọ chứa các chất bị mất nhãn sau

a/ ddNaCl,ddH₂SO₄,ddKOH

b/ ddZnCl₂,ddNaOH,dd HNO₃

c/ ddKOH,ddKNO₃,ddHCL

thuyết minh về một danh lam thắng cảnh ở địa phương ( Dĩ An) mà em biết

Bài 1: Một người đi xe máy từ TPHCM đi Bình Dương với vận tốc trung bình 30 km/h, lúc về người đó chỉ đi với vận tốc trung bình là 25 km/h, nên thời gian về nhiều hơn thời gian đi là 20 phút. Tính quãng đường từ TPHCM đi Bình Dương.

cho tam giác A'B'C' đồng dạng với tam giác ABC theo tỉ số đồng dạng là k bằng 3/5

a tính chỉ số chu vi của tam giác đã cho

b cho biết chu vi của tam giác trên là 40dm tính chu vi của mỗi tam giác

2. Change into passive voice (chuyển sang câu bị động)

1. We clean the kitchen every day.

2. People grow rice in these fields.

3. They send the goods to Vung Tau by coach.

4. The workers will build many new houses in that area next year.

5. Linda will help her mother

I have twin brothers, Tim and Tom. They are very similar and a lot of people don’t
know which is which. They both have blond hair and blue eyes, and they always wear jeans
and T-shirts. They like doing the same things, too. For example, they both like jazz and
they’re crazy about football. They go to a football match once a week. Tim doesn’t like
dancing or discos and Tom doesn’t like them, either. Although they’re twins, they’re not
exactly the same at everything. Tim works hard at school because he wants to go to
university, but Tom is a bit lazy. Our mother is often away from home because of her job,
so we all work together in the house. Most of the time it’s fine, but sometimes we fight a
bit!
1. What do Tim and Tom always wear?
______________________________________________________________________
2. How often do they go to a football match?
______________________________________________________________________
3. What don’t they like?
______________________________________________________________________
4. Why does Tim work hard at school?
______________________________________________________________________
5. Why is their mother often out?
______________________________________________________________________

Supply the correct form of the words in the brackets: (1m)

1. Finally, they decided (go) …………… out for drinks.

2. She thought she might (return) …………… home soon.

3. Nga advised Nhi what (do) …………… there during the visit.

4. There are a lot of ................................. (tradition) festivals in Vietnam

5. .................................. (fortunate) her illness was more serious than we thought

1. She said to me " Do you do your homework right after school?"

She asked me...............................................................................................

2. The Viet Namese people celebrate Tet holiday around January and February .

The Tet holiday..............................................................................................

3. It is a festival in which participants have to make a fire.

It is a ...........................................................................................................

1. I didn’t know how I can play the game.

I din’t know how ……………………………………………………………..