The growth of curd cutting bacteria is 5% per hour if number of bacteria is 7pm evening is 9.261*10 to the power 11 what was the number before 3 hours find it

< 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⭐

whats the

not sure but it may be b, as i said i'm not sure.

x = -5

step-by-step explanation: