Please help me with the question above , it’s due in a few hours , if anyone has the answer or answers to these or all the pages please let me know !!! Thank you

the answer is 0.071

good luck! : 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⭐

i believe that the answer is

b. y-1=-2(x-4)

hope this !