Write the equation of the axis of symmetry.f(x) = 2x2 - 20x + 53

A. x = 5
B. x = -3
C. x = -5
D. x = 3


Answer: A

Mathematics

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Find the set if the universal set U = {-8, -3, -1, 0, 2, 4, 5, 6, 7, 9}, A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}.A ? C

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A. 5 B. 4 C. 7 D. 6

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Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(8x + 3y)2

A. 8x2 + 48xy + 9y2 B. 8x2 + 9y2 C. 64x2 + 48xy + 9y2 D. 64x2 + 9y2

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