Write the augmented matrix that represents the linear system.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the radius of gyration about the z-axis of a thick-walled right circular cylinder bounded on the inside by the cylinder r = 1, on the outside by the cylinder r = 4, and on the top and bottom by the planes z = 6 and z = 10.
A. 510?
B. 
C. 
D. 
Mathematics
Find all complex-number solutions by completing the square.x2 = -10x - 32
A. x = 5 ± i
B. x = -5 ± 7i
C. x = -5 ± 
D. x = -5 ± i
Mathematics
Simplify.2y(1 + 2y - 3y2) + 2y2(y - 7)
A. -4y3 - 10y2 + 2y B. -4y3 - 14y2 + 10y C. -4y3 + 18y2 + 3y D. 8y3 - 10y2 + 2y
Mathematics
Write the augmented matrix for the system. 2x + 7z = 55 -2y + 4z = 14 4x + 8y + 3z = 89
A. 
B. 
C. 
D. 
Mathematics