One link in a chain was made from a cylinder that has a radius of 2.5 cm and a height of 22 cm. how much plastic coating would be needed to coat the surface of the chain link

The correct answer is indeed 384.65 cm^2 but for some reason on the test the answer is 345.4 cm^2

Step-by-step explanation:

We require to coat the area of with the plastic coating.

SOLUTION:

Given, one link in a chain was made from a cylinder that has a radius of 2.5 cm and a height of 22 cm.

We have to find how much plastic coating would be needed to coat the surface of the chain link

So, we have to find the total surface area of the cylinder.

We know that total surface area of the cylinder is given by 2 \pi r(r+h) where r is radius and h is height.

Now, here r = 2.5 cm, and h = 22 cm

So, total surface area

answer: it actually depends on which is the independent variable and which is the dependent variable. let us say we're looking at a linear equation. y=2x+3. we theoretically could switch the equation to be x=(y-3)/2 and it would be the same line. so either a causes b or it can be that b causes a. so technically the answer is false

step-by-step explanation: