If a number cube is rolled, what is the theoretical probability, as a reduced fraction, of NOT rolling a 3?

there is a 1:3 chance

Step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square