What is the mean?
6 3 0 5 -4

2

Step-by-step explanation:

To find the mean, add all the numbers together

6+ 3+ 0+ 5+ -4 = 10

Divide by the number of numbers

10/5 = 2

The mean is 2

< 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⭐

a

step-by-step explanation: