Cho đa thức B = 4x 2 y – 7xy2 + 6x 2 y – 10 x 2 y + 5x3 y 2 . a) Thu gọn đa thức B. b) Tìm bậc của đa thức B. c) Tính giá trị của đa thức B tại x = 2 , y = -3.

The distance from Quang Ninh to Hanoi is over 200 kilometers. - It 2. You are very intelligent to do this difficult exercises. - It 3. When he was ten , He often told lies to his parents. - He used 4.I learned English from 2000 to 2016. - I have 5. A fly leaves for Ho Chi Minh city at 4 pm every afternoon. - There is

Giải giúp em bài 3 ạ.

viết 1 câu ghép có cấu trúc:vì cn-vn nên cn-vn

1) 1/6 . 1/2 = ? 2) Phân số 6/35 có thể viết dưới dạng tích của hai phân số bằng bao nhiêu ?

II/ Write a short paragraph (60-80 words) to describe the place you would like to visit: You should use the following questions as cues: - What is the name of the place? - Where is it? - Why do you like to visit it? - What will you do when you get there? GIUP MIK VS MIK DANG CAN GAP

chọn a b c thôi nha các bạn mình gấp lắm

hepl me giúp mình với mình cần luôn

Cho ( O;6cm), tính: a. Độ dài đường tròn. b. Độ dài cung AB, biết góc AOB là 30 độ. c. Tính diện tích hình tròn làm tròn đến chữ số thập phân thứ ba. d. Biết cung CD dài 4πcm , hãy tính góc COD.

III. Fill each Wank in the following sentences with a food quantifier from the box. A bar of a bowl of a bunch of a can of a carton of A clove of a loaf a slice of a stick of a tablespoon of 1. Add _______ vinegar and 200ml of water into the bowl and mix well. 2. My brother usually has _______ cereal and some milk for breakfast. 3. She bought a grapefruit and________bananas at the village market. 4. Mummy, can you give me______ celery, please? 5. I have a recipe that calls for only ______garlic. 6. There is _______ bread, some eggs and some salad for dinner. 7. You look thirsty. Would you like ______ soda? 8. Do you want________ chocolate or five chocolate sweets? 9. Please go to the store and buy _______ milk and if they have sugar, get onekilo. 10. He has eaten _______pizza, two pieces of cake and three eggs. GIÚP MK VỚI