This symbol means that both sets could have the same elements. (a ⊆ b) true false

Hey!

Hope this helps...

What you want to know is this:

The symbol ⊆, which is known as a: subset

This means that (in this case): A is a subset of B, and set A is included in set B...

The answer is: false

Reason: All elements of set A are contained in set B, but not all elements of set B are contained in set A...

18.75 gallons

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.