50 points, consider the sequence below. -351, -343, -335, -327, -319 select the explicit function which defines the sequence from the picture below

Option D. = 8n - 359

Step-by-step explanation:

The given sequence is -351, -343, -335, -327, -319......

As we can see there is a common difference of 8 in each successive term.

T₂ - T₁ = -343 - (-351 ) = 351 - 343 = 8

T₃ - T₂ = -335 - ( 343 ) = 343 - 335 = 8

Therefore, the given sequence is an arithmetic sequence.

Now the explicit formula of an arithmetic sequence is represented by

a = first term of the sequence

n = number of terms

d = common difference

= -351 + 8n - 8

= 8n - 359

Therefore, option D. = 8n - 359 is the answer.

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.