Evaluate the determinant.
A. -3
B. -8
C. 3
D. 27
Answer: C
Mathematics
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Solve.xy = 42x + y = 13
A. x = 7, y = -6; x = 6, y = -7 B. x = 7, y = 6; x = 6, y = 7 C. x = -7, y = -6; x = -6, y = -7 D. x = -7, y = 6; x = -6, y = 7
Mathematics
Find the derivative of the implicit function.sin (xy) + x = 5y
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by the zero-factor property.x2 + 2 = 11
A. {5.5} B. {-2, 2} C. {-3, 3} D. {3}
Mathematics
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics