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anonymous
 one year ago
An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 3.5 ft long with a diameter of 1.4 ft . Suppose oil is drained at a rate of 2.1 ft3 per minute. If the tank starts completely full, how many minutes will it take to empty the tank? Use the value 3.14 for π , and round your answer to the nearest minute. Do not round any intermediate computations.
anonymous
 one year ago
An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 3.5 ft long with a diameter of 1.4 ft . Suppose oil is drained at a rate of 2.1 ft3 per minute. If the tank starts completely full, how many minutes will it take to empty the tank? Use the value 3.14 for π , and round your answer to the nearest minute. Do not round any intermediate computations.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[V=\frac{ \pi d^2h }{ 4 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Then divide by the volume by the rate to find the time

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is that the correct formula ? is it supposed to be r^2 instead of d^2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It's the correct formula. You can also use V = πr²h. I used the one with d because they gave the diameter. r = d/2, so r² = d²/4
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