TIME REMAINING 21 01:54:13 Which of the following is an arithmetic sequence? n 1 2 3 4 a. -1 3 -3 -1 n 1 2 3 4 -6 -10 a 2 -2 n 1 2 3 4 an 3 6 9 15 n 1 2. 14 3 4 24 32 an 4 Mark this and return Save and Exit Next Submit​

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.

im not sure what this means: mc011-7.jpg

step-by-step explanation:

look in attachments

step-by-step explanation:

a = (-2, 0)

b= (-4, 0)

c = (-5,2)

d = (-1,2)