Answer:
a=0
Step-by-step explanation:
x²-2x+y²-4y-4=0
(x²-2x+1)+(y²-4y+4)-9=0
(x-1)² + (y-2)² = 3²
Center: (1,2) radius: 3
(1,2) on line 2x-y+a=0
2*1 - 2 + a = 0
a = 0
if it is find the value of x her it is
45
A whole circle is 360 so if you divided that by 8 you get 45
3.2
1/5=0.2
3 + 0.2 = 3.2