Laura owns 10 shares of a certain stock. Yesterday the total value of her shares went down by 80 dollars. What was the change in value for each share?

< 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⭐

step-by-step explanation: the answer for wha if rt is 10 centimeters long, and wha is st? it’s 6

c

step-by-step explanation: easy math

i need points

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