Which of the following graphs represents a function?

The last one

Step-by-step explanation:

If you look at a graph, none of the line should overlap each other vertically. If a graph overlaps anywhere vertically, it is not a function.

Third graph is the correct choice.

Step-by-step explanation:

Since we have given figures

We need to find the graph which is a function.

For being a function , it should satisfy the condition mentioned below :

If we draw a vertical line which intersect the graph more than once, then it is not considered to be function as there will be more than one values for x .

According to options , only third graph satisfy the condition when we draw a vertical line intersecting the graph.

There will be only one value of y for each x.

Hence, third graph is the correct choice.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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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.