392065.018 could be rewritten as 302965.018. Here I have moved the "9" two places to the right.
So the formula is 2pi(r)(h)+2(pi)(r^2)
2(3.14)(40)(17)+2(pi)(40^2)
so then multiply and add it up and you get
about 14,325 1/3 or 14,325.34
the answer to this question is b
To find the cube root of a number, you want to find some number that when multiplied by itself twice gives you the original number.
