How am any zeros are in the simplified expression 4 times 10^ x? a. x b. x -1 c. x+1. d. 4x. which one is it? a or b or c or d?

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

the answer would be c:   ax + b = ax + c

step-by-step explanation: