a negative divided by a negative is a positive
558/5 = 111 3/5
So either the problem is wrong or the choices are wrong
S = at^2 + v0t + s0
at^2 = s - s0 - v0t
a = (s - s0 - v0t) / t^2
The formula of pyramid:

Where v is the volume, a is the base area and h is the height.
We can then put the given information into the formula:
176 = (1/3)(3x × x)(11)
(176 × 3) / 11 = 3x^2
3x^2 = 48
x^2 = 48/3
x = _/16
x = 4
Step-by-step explanation: