Cho hai tập hợp A m   ( 1;4] và B m m      ( 2;2 2), .  a) Tìm tất cả các tham số m để A B    ?
Tìm tất cả các tham số m để A B  ?

Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?

How do you find the area of a triangle

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?