2m+10=5m+100 what is the value of m

m=-30

Step-by-step explanation:

2m+10=5m+100

get rid of 2m by subtracting

10=3m+100

get rid of 100 by subtracting

-90=3m

divide by 3

-30=m

m=-30

< 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⭐