Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 7x - 6y - 4z = 117w + 5x - 9y - 4z = -108w - 7x + 7y + 5z = -25-6w - 4x + 7y + 8z = -2

A. (1, 5, 4, 2)
B. (-1, 5, 4, -2)
C. (-1, 4, -5, 2)
D. No solution


Answer: B

Mathematics

You might also like to view...

Solve.Wayne has $17 in his bank account. A check written against his account for $27 arrives at the bank. What is his balance?

A. $44 B. -$10 C. $10 D. -$44

Mathematics

Solve the problem.A spotlight has a parabolic cross section that is 6 ft wide at the opening and 2.5 ft deep at the vertex. How far from the vertex is the focus? Round answer to two decimal places.

A. 0.21 ft B. 0.52 ft C. 0.90 ft D. 0.26 ft

Mathematics

Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) = x +  

A. (-5, 0), (5, 0) B. (5, 0) C. (-25, 0) D. none

Mathematics

Perform the indicated operation and round as indicated.  hundredths

A. 0.01  B. 0.06 C. 0.55  D. 0.05 

Mathematics