Final answer:
The correct volume of the water tank, calculated using the formula for a cylinder's volume, is 391,722.3 cubic feet. So, the correct answer is (d) none.
Step-by-step explanation:
To calculate the volume of this water storage tank, we would use the formula for the volume of a cylinder: Volume = πr²h where r is the radius of the cylinder and h is its height. Since we are given the diameter of the tank, we must first calculate the radius. The radius (r) is half the diameter, so it is 91/2 = 45.5 feet. Then to find the volume, we substitute these values (r=45.5 feet and h=60 feet) into the volume formula to get: Volume = π(45.5ft)²(60ft) = 391,722.3 cubic feet rounded to the nearest tenth. .
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