Substitute

, so that

. The integral is then equivalent to

Then transforming back to

gives
the answer is 17.68 kilometers <span>10.98 miles</span>
The variable is d, so the coefficient is 1/4. Factor out 1/4 and you are left with (d-3).
(X + 4)(x - 1)(x -6) = (x^2 - x + 4x -4)(x - 6)
(x^2 + 3x -4)(x - 6) = x^3 -6x^2 + 3x^2 - 18x - 4x + 24 = x^3 - 3x^2 - 22x + 24
It is the first one
Answer:
The volume would be approximately 2143.573333...