A cylindrical gasoline can is 18 inches across and 20 inches tall.which expression represents the approximate volume in cubic inches
V ≈ πr^2h
Given that the diameter of the gasoline can is 18 inches, the radius (r) is half of the diameter, so r = 9 inches.
Plugging in the values for r and h:
V ≈ π(9)^2(20)
V ≈ π(81)(20)
V ≈ 1620π
Therefore, the expression that represents the approximate volume in cubic inches of the cylindrical gasoline can is 1620π cubic inches.