Please give me the explanation for this question, been on it for like 3 hours and can't get the answer

B

Step-by-step explanation:

What you have to do is to find the volume of both forms and add them together.

So the formula for area of a cone (the top half of the pylon) is:

V=πr^2(h/3)

So now we plug our values in.

V=π1^2(2/3)

Simplify.

V=2/3π

Next, we find the volume of the cylinder.

The formuhe formla for this is:

V=πr^2h

So again, we plug the values in

V=π1^2(3)

Simplify.

V=3π

Now we add the volume of the cylinder with the volume of the cone.

2/3π+3π=3 2/3π

Therefore, you need 2/3π cubic feet of concrete.

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.  

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.