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

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π

If 3x+8=3x+8 is it one solution or no solution

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor