mot vat dang chuyen dong voin van toc v. muon vat chuyen dong theo phung cu va chuyen dong nhanh len thi ta phai tac dung mot luc vao vat a:cung phuong cung chieu voi van toc b:cung phuong nguoc chieu voi van toc c:co phuong vuong goc voi van toc d:co phuong bat ki voi van toc

Bài 1:Xác định a,b để đồ thị hàm số y=ax+b đi qua 2 điểm A(-5;3) B(3;1)

Bài 2:Xác định a,b để đồ thị hàm số y=ax+y đi qua 2 điểm A(-√5;√2) B(0;√2)

Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.