Answer: B
Explanation:
The volume of the cylindrical water tank can be calculated as:
Volume = π x radius^2 x height
We know that the tank holds 1,200 liquid gallons, which is equivalent to:
1,200 / 7.48 = 160.43 cubic feet
We also know that the radius of the tank is 2.4 feet. Substituting these values into the formula, we get:
160.43 = 3.14 x 2.4^2 x height
Solving for height, we get:
height = 160.43 / (3.14 x 2.4^2) = 8.9 feet (approx.)
Therefore, the approximate height of the water tank is 8.9 feet (b).