Solve the system. w + 3x - 2y - z = -1 4w + x + y + 2z = 19-3w - x - 3y - 2z = -23 w - x - 3y - 2z = -15
A. {(2, 2, 3, 3)}
B. {(2 + z, 2 - 2z, 3 + 2z, z)}
C. {(1, 4, -1, 5)}
D. {(-1, 19, -23, -15)}
Answer: A
You might also like to view...
Find the probability. Round to the nearest ten-thousandth when necessary.A coin is biased to show 45% heads and 55% tails. The coin is tossed twice. What is the probability that the coin turns up heads once and tails once?
A. 0.45 B. 0.495 C. 0.55 D. 0.2475
Provide an appropriate response.Determine at what point the plane 
intersects the x-axis.
A. (7, 0, 0)
B. (0, 7, 0)
C. 
D. 
Solve the equation.1.3a = 39
A. 1.3 B. 30 C. 26 D. 39
Use the method of natural frequencies to find the indicated probability.A company manufacturing electronic components for home entertainment systems buys electrical connectors from three suppliers. It buys 21% of the connectors from supplier A, 38% from supplier B, and 41% from supplier C.It finds that 1% of the connectors from supplier A are defective, 2% of the connectors from supplier B are defective, and 3% of the connectors from supplier C are defective. If a customer buys one of these components and finds that the connector is defective, what is the probability that it came from supplier B?
A. 0.345 B. 0.02 C. 0.095 D. 0.528