Acircle graph has three regions. one region is 2/5, the second is 9/20, what is the fraction of the third regions?

we need the options

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