Express each of the following quadratic functions in the form of f(x) = a (x - h)²+ k. Then, state the minimum or maximum value, axis of symmetry and minimum or maximum point. (a) f(x) = -2x² + 7x + 4. Pls help me! I'll mark u as the brainliest​

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the answer is c. hope this !

step-by-step explanation:

< 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

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