Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. x + y + z + w = 8 3x + 2y + z + 4w = 214x + 4y + 5z + 8w = 302x + 3y + 6z + 9w = 15
A. ?
B. {(-3, 16, -6, 1)}
C. {(5w + 11, -3w - 7, -3w + 4, w)}
D. {(-6w + 3, 9w + 7, -4w - 2, w)}
Answer: D
You might also like to view...
Find the product.2y3(2y + -5)(y + 3)
A. 2y4 + -30y3 B. 6y4 + -30y3 C. 4y5 + 2y4 + -30y3 D. 4y5 + -30y3
Solve the problem.The average cost of a 1 minute commercial on a leading network channel was $146,000 in the fall of 1999. This was a 6% decrease from the cost a year earlier. What was the cost of a 1 minute commercial on the channel in the fall of 1998?
A. $87,600 B. $876 C. $73,000 D. $155,319
Use the given vectors to find the specified scalar.u = -5i + 3j, v = 6i - 6j, w = -3i + 12j; Find u ? w + v ? w.
A. -32 B. -34 C. -39 D. -43
Determine the slope and y-intercept of the line represented by the equation. Graph the line using the slope and y-intercept.y = 
x - 1
A. m = 
, y-intercept is (0, -1)
B. m = 
, y-intercept is (0, 1)
C. m = - 
, y-intercept is (0, -1)
D. m = 
, y-intercept is (0, 0)