approximately how much air does it take to fill up the beach ball below if it has an 18-inch radius

Question

anonymous · Answer

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ddcamp · Answer

V = (4/3)(pi)(r³)

Though "how much air" is a somewhat ambiguous question, I'm assuming they just want cubic inches.

anonymous · Answer

yes they want cubic inches

anonymous · Answer

You're looking for how much air the ball can hold, so you'd be looking for the volume. The formula for the volume of a sphere is: $$\frac{ 4 }{ 3 }\pi r^3$$ So just plug into the equation, r being 18.

anonymous · Answer

i got 24416.64

anonymous · Answer

That's the same answer I got. So your answer would be 24416.64in^3

anonymous · Answer

but the answers they got is 5832 cubic inches, 18,322 cubic inches, 24,429 cubic inches, 73,287 cubic inches

anonymous · Answer

its either one of those

anonymous · Answer

It depends on how you plugged it in, AI guess. I just tried putting it into my calculator again as (4/3)($$(4/3)(\pi)(18^3)$$

anonymous · Answer

I ended up with 24429 Cubic Inches