Question

i just want to know if i did it correct... thats all ! :)

1. The main tank has a radius of 70 feet. What is the volume of the quarter-sphered sized tank? Round your answer to the nearest whole number

Answer 1

V=4/3 x 3.14 x r^3
V=1.3 x 3.14 x 70^3
V= 1.3 x 3.14 x 343000
V= 1,400,126
Is that already in cubic feet or no ?

Answer 2

um i would say yes but to figure it out we must start at the beginning

Answer 3

okkk :o

Answer 4

lol what are you trying to figure out in all and all

Answer 5

if my final answer is in cubic feet ?
because f its not idk how to put it in cubic feet..

Answer 6

oh yes

Answer 7

it is in cubic feet?

Answer 8

no it is not because i do not see where you put in cubic feet unless the work already was i cubic feet

Answer 9

i dont understand that much that whole cubic feet thingy. thats why im asking if its already in cubic feet or if there's another step to do to make it in cubic feet//

Answer 10

ok will first go to this website and read http://www.thecalculatorsite.com/articles/units/calculating-cubic-conversions.php tell me if it helps then if it does not well start from scratch k :)

Answer 11

okk brb :)

Answer 12

im sorry but im just plain lost now.

Answer 13

lol ok well first explain the question and the problem

Answer 14

i have to find the volume of a sphere. the volume of a sphere is V=4/3 x 3.14 x r^3

Answer 15

@jim_thompson5910 help pleasee ?

Answer 16

first thing, I would keep 4/3 as it is and not use 1.3 as that is a really bad approximation. If you need to use an approximation, use more decimal places (so maybe 4/3 = 1.333)

but if I were doing this problem, I would simply type

(4/3)*pi*70^3

into a graphing/scientific calculator as one full expression. That way there isn't as much rounding error

Answer 17

also, they want the volume of the "quarter-sphered sized tank"

so you'll find the volume of the entire sphere and then divide that result by 4

Answer 18

it gave me this --> 1436026.6666666665

Answer 19

now divide that by 4

Answer 20

divided by 4 is equal to this -->359006.6666666666 rounding to the hundredth would be 359007 right ?

Answer 21

"Round your answer to the nearest whole number"

so you'll go from 359006.6666666666 to 359007

you are correct

Answer 22

the volume units are in cubic feet

Answer 23

the final answer will be 359007 cubic feet ? :O

Answer 24

correct

Answer 25

Ahhhhhhhhh ! Thankkk youuuu ! ^.^

Answer 26

you're welcome