<PRE><B>Question 185756</B>
Let C = capacity of spherical gas tank.

You are given a 45 foot diameter. We need to find r, which is the radius.

The radius is 1/2 the diameter.

So, radius is 45/2 = 22.5

C = (4/3)(3.14)(22.5)^3

Before finding C (your answer), we must raise 22.5 to the third power.

22.5 x 22.5 x 22.5 = 11390.625

Now, C = (4/3)(3.14)(11390.625)

Of course, we can also write 3/4 as 0.75 giving us the equation

C = (0.75)(3.14)(11390.625)

Can you finish now?

Just multiply using your calculator to find C.


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