Find (3c2 - 8c + 5) + (c2 - 8c - 6). A
3c2 - 1

B
4c2 - 16c - 1

C
2c2 - 16c - 1

B

4c^2 - 16c - 1

Step-by-step explanation:

(3c2 - 8c + 5) + (c2 - 8c - 6).

remove parantheses.

3c2 - 8c + 5 + c2 - 8c - 6

add common factors

answer= 4c^2 - 16c - 1

Ellis will need 244.92 ft2 of paint.

Step-by-step explanation:

First we need to find the surface area of one fencepost.

The fencepost is cylindrical, so the surface area is given by the equation:

If the height of the fencepost is 6 feet and the radius is 0.5 feet, we have:

The surface area of the 12 fenceposts is:

Ellis will need 244.92 ft2 of paint.