Simplify the complex rational expression.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the sum of the series.
A. 
B. 
C. 
D. 
Mathematics
Find the vertices and graph the hyperbola.49y2 - 25x2 = 1225
A. (0, -7), (0, 7)
B. (-7, 0), (7, 0)
C. (0, -5), (0, 5)
D. (-5, 0), (5, 0)
Mathematics
Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes B. No
Mathematics
State the dimension of the matrix.
A. 5 × 3 B. -5, 4, 7, 7, -5, 5, -7 C. 15 D. 3 × 5
Mathematics