Find A-1, if it exists.A = 
A. 
B. 
C. Does not exist
D. 
Answer: B
Mathematics
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Multiply.(7b2 + 4)(7b2 - 4)
A. 14b4 + 16 B. 49b4 - 16 C. 14b4 - 16 D. 49b4 + 16
Mathematics
Graph the solution region for the system of inequalities and identify the corners of the region.
A. 
B. 
C. 
D. 
Mathematics
Factor completely using the trial and error method to factor trinomials. If unfactorable, indicate that the polynomial is prime.8x2y2 + 10xy2 - 25y2
A. (4x - 5y)(2x + 5y) B. y2(4x - 5)(2x + 5) C. y2(x - 5)(8x + 5) D. (2x - 5y)(4x + 5y)
Mathematics
Graph the function.y = sin 
x
A. 
B. 
C. 
D. 
Mathematics