Find the axis of symmetry of the parabola defined by the given quadratic function.y + 9 = (x + 3)2
A. x = 3
B. y = -9
C. x = - 3
D. y = 9
Answer: C
Mathematics
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Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x3 + 3x2 - 16x - 48
A. (x - 3)(x + 4)(x - 4) ; 3, -4, 4 B. (x + 3)(x + 4)(x - 5) ; 3, -4, 5 C. (x + 3)(x - 4)(x + 4) ; -3, 4, -4 D. (x - 3)(x + 4)(x - 4) ; -3, 4, -4
Mathematics
Find the exact value of the following expression without using a calculator.csc(?/2)
A. 1 B. 0 C. -1 D. Undefined
Mathematics
Solve the inequality. |7x-2|<4
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Mathematics
Solve the triangle.a = 9, b = 6, c = 4
A. A = 127.2°, B = 20.7°, C = 32.1° B. A = 32.1°, B = 127.2°, C = 20.7° C. A = 127.2°, B = 32.1°, C = 20.7° D. A = 32.1°, B = 20.7°, C = 127.2°
Mathematics