Which equation is equivalent to 4x+3=64

x=15.25

step-by-step explanation:

4x+3=64

-3 -3

4x=61

/4 /4

x=15.25

< 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⭐

maybe i can