BRAINLEST ANSWER Ellis is painting wooden fenceposts before putting them in his yard. They are each 7 feet tall and have a diameter of 1 foot. There are 11 fenceposts in all. How much paint will Ellis need to paint all the surfaces of the 11 fenceposts? Use 3.14 for π, and round your answer to the nearest hundredth. Provide an explanation and proof for your answer.

Step-by-step explanation:

It is implied that Ellis's fenceposts are cylinders and that he will paint the total surface area of each cylinder, even though the base will be touching the ground.

The total surface area of a cylinder with radius and height is equal to .

By definition, all radii of a circle are exactly half of the diameter. Therefore, if the diameter is 1 foot, the radius must be half a foot. We're given a height of 7 feet.

What we know:

Substituting and into and using as requested in the problem, we get:

Since there are eleven fenceposts, multiply this value by 11 to get the total paint needed, in square feet, for all eleven fenceposts:

what is the original number? you forgot to add it.

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8