Add or subtract as indicated. Simplify the result if possible. If an answer is an improper fraction, write it as a mixed number.14 - 
A. 13
B. 11
C. 13
D. 14
Answer: C
Mathematics
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Given matrix A, find the indicated cofactor.Find A21.A = 
A. -11 B. -14 C. 11 D. 14
Mathematics
Using the graph of the parabola, determine the coordinates of the vertex and focus, and the equation of the directrix.
A. Vertex (1, 3), focus (3, 3), directrix y = -1 B. Vertex (3, 3), focus (1, 3), directrix x = -1 C. Vertex (1, 3), focus (-1, 3), directrix x = 3 D. Vertex (1, 3), focus (3, 3), directrix x = -1
Mathematics
Provide an appropriate response.One factor of x(y + 6) + 2(y + 6) is
A. y + 2 B. x + y C. x + 2 D. x + 6 E. y + 12
Mathematics
Find the product.(n + 8)2
A. 64n2 + 16n + 64 B. n2 + 64 C. n2 + 16n + 64 D. n + 64
Mathematics