Explain How you got that answer

Step-by-step explanation:

Given equation is

Adding 25 to both sides

Completing squares

Both of their "b" is -3 and 4 respectively

So, adding (-3)² => 9 and (4)² => 16 to both sides

Comparing it with , where center = (h,k) and radius = r.

We get:

Center = (-3,4)

Radius =

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

the answer to your question is minor arc.