Answer
simplify 3x ² - 2x+5 from
5x ²-x-7 express the result as a trinominal i will give branliest

< 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⭐

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answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

thus, the first answer choice, y = sec x, is the correct one