Find the maximum value of Q(x) subject to the constraints xTx = 1 and xTu = 0, where u is a unit eigenvector corresponding to the greatest eigenvalue of the matrix of the quadratic form.Q(x) = 3
+ 8
+ 4
A. 4
B. 0
C. 3
D. 8
Answer: A
Mathematics
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Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.-4x - 4y + 3z = -21-16x - 15y + 13z = 0-8x - 7y + 7z = -12
A. 
B. 
C. 
D. No solution
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Write the augmented matrix for the system.2x+ 7z = 18 2y + 4z = 203x + 8y + 8z = 70
A. 
B. 
C. 
D. 
Mathematics
Find the height of the flagpole given that the shadows being cast by each object occurs at exactly the same time of day. The figures are not drawn to scale.
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Simplify the decimal expression.-0.71(-0.94)
A. -1.65 B. 0.6674 C. -0.23 D. -1.55
Mathematics