Find the vertex of the parabola.y = 4x2 + 32x + 66
A. (-2, 4)
B. (4, -2)
C. (-4, 2)
D. (2, -4)
Answer: C
Mathematics
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Use the appropriate addition formula to find the exact value of the expression.cos 
A. 
- 
B. - 
- 
C. 
D. 
Mathematics
Evaluate the expression.(-121)1/2
A. -11 B. not a real number C. 11 D. -5.5
Mathematics
Graph the equation by plotting points.y = x3 + 2
A. 
B. 
C. 
D. 
Mathematics
Completely factor the polynomial or state that the polynomial is prime.5x3 + 10x2 - 40x
A. 5x(x - 2)(x + 4) B. (5x2 + 10x)(x - 4) C. (x - 2)(5x2 + 20) D. 5x(x + 2)(x - 4)
Mathematics