In the diagram , tangent cd and secant cba are drawn to circle o from external point c . if dc=4 , and ab=6 , find bc.

a. 8
b. 2
c. 6/16
d. 16/6

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0