What is the percent of change from 50,000 to 40,000? 20% decrease
25% decrease
20% increase
25% increase

20% decrease

Step-by-step explanation: Because if you multiply 50,000 by 2 you get 100,000 which would be 100% so you will also multiply 40,000 by 2 80,000 subtract 80,000 from 100,000 and you get 20,000 so its 20%

< 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⭐

show us the graphs dude

step-by-step explanation: