SOLUTION: The volume of a cylindrical tank is given by the formula V =πh r2 where h is the height of the cylinder and r is its radius. Find the volume to the nearest tenth of a cubic

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Question 74943This question is from textbook Alegbra & Trig w/Geometry
: The volume of a cylindrical tank is given by the formula V =πh r2
where h is the height of the cylinder and r is its radius. Find the
volume to the nearest tenth of a cubic foot of a cylindrical tank that
has a radius of 3 feet and a height of 5 feet.
A bacteria culture started with a count of 720 at 8:00 A.M., and after
t hours is expected to grow to f(t)=720(3/2)t. Estimate the number of
bacteria in the culture at 11:00 A.M. the same day.
This question is from textbook Alegbra & Trig w/Geometry

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
The volume of a cylindrical tank is given by the formula V=pi%2Ah%2Ar%5E2
where h is the height of the cylinder and r is its radius. Find the
volume to the nearest tenth of a cubic foot of a cylindrical tank that
has a radius of 3 feet and a height of 5 feet.
r=3 ft; h=5 ft; pi=3.14159
V=%283.14159%29%285ft%29%283ft%29%5E2
V=%283.14159%29%285ft%29%289ft%5E2%29
V=141.3716694ft%5E3
highlight%28V=141.4ft%5E3%29
:
If you're in a class that uses only p=3.14, the answer differs by a tenth. V=141.3 ft^3
:
A bacteria culture started with a count of 720 at 8:00 A.M., and after
t hours is expected to grow to f(t)=720(3/2)t. Estimate the number of
bacteria in the culture at 11:00 A.M. the same day.
If t is supposed to be a power or exponent, then this is what you do. If it's not, let me know.
t=11-8=3
f%283%29=720%283%2F2%29%5E3
f%283%29=720%283%5E3%2F2%5E3%29
f%283%29=720%2827%2F8%29
f%283%29=8%2A90%2827%2F8%29
f%283%29=cross%288%29%2A90%2827%2Fcross%288%29%29
f%283%29=90%2A27
highlight%28f%283%29=2430%29
Happy Calculating!!!