A walkway is being constructed using square cement tiles that each have an area of 19.0 ft2. 6 tiles will be lined up end to end to construct the walkway. What is the total length of the walkway? Round your answer to the nearest tenth of a foot. Your

26.3 feet

Step-by-step explanation:

We have to first find the length of the side of each tile.

The area of each tile is 19.2 .

The area of a square is:

A =

where L = length of side

Therefore:

6 tiles will be lined end to end to construct the walkway, hence, the length of the walkway is:

6 * 4.38 ≅ 26.3 feet

A -4n^2-2n + 3

Step-by-step explanation:

let's simplify this by making h(n) = u

this means g(h(n)) = g(u)

u = h(n) = -2n^2 - n

g(h(n)) = g(u) = 2u + 3

now plug h(n)) in wherever there is u

2(-2n^2-n)+3

-4n^2-2n + 3