Solve using matrices.x + y = -1
A. (6, -4, 12)
B. (3, 4, 4)
C. (3, -4, 4)
D. (-5, -4, -4)
Answer: C
Mathematics
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Factor by grouping.6x2 - 4xy - 15xy + 10y2
A. (6x - 5y)(x - 2y) B. (2x - 5)(3x - 2) C. (2x - 5y)(3x - 2y) D. (2x + 5y)(3x - 2y)
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Find the coordinates of the vertex of the parabola.y = 3x2 + 12x + 13
A. (2, -1) B. (-1, 2) C. (-2, 1) D. (1, -2)
Mathematics
Identify the graph of the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Estimate by rounding as directed.32.432 - 15.50; nearest tenth
A. 17.1 B. 16.9 C. 14.6 D. 16.7
Mathematics