Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.9w + 7x - 6y - 3z = -248w + 5x - 9y - 3z = -329w + 7x + 7y + 4z = 21-6w - 3x + 7y + 9z = 16
A. (-1, 4, -5, 2)
B. (2, 3, -4, -2)
C. (2, -3, 4, -1)
D. No solution
Answer: C
Mathematics
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Match the equation with its graph.y = 2 ? 2x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Round your answer to the nearest tenth.The roof of a building is in the shape of the hyperbola 4y2 - x2 = 28, where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls. 
a = 5.0 mb = 5.0 m
A. 13.3 m B. 3.6 m C. 7.3 m D. 53.0 m
Mathematics
Provide an appropriate response.Let A = 
and let B = 
.Does the matrix A + B have an inverse?
A. Yes B. No
Mathematics
Suppose 500 coins are tossed. Using the normal curve approximation to the binomial distribution, find the probability of the indicated results.251 heads or less
A. .552 B. .448 C. .536 D. .548
Mathematics