Ex: 7^3=(7×7×7) --- 7×7=49×7=343
Answer:
x=-2.25,y=-2.25
Step-by-step explanation:
The given system is

We want to solve the system for x and y that makes the system true.
Let us multiply the first equation by 3 while maintaining the second equation:

Subtract the current second equation from the first one.

Divide through by 12:

From the second equation we have:

This implies that:

The radius is 4.
Find the radius of the circle whose equation is (x + 5)2 + (y + 8)2 = 16