Trong số các đường tròn có phương trình dưới đây , đường tròn nào đi qua gốc tọa độ O (0;0) ? A.
(x-3)2+(y-4)2 =25
B.
x2 + y2-4x-4y+ 8 = 0
C.
x2 + y2– x – y+2 = 0
D.
x2 + y2 = 1

answer: b.

step-by-step explanation:

it is b. cause the equations are put in the right category

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

step-by-step explanation:

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