Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. x - y + z - w = 10 -2x + 3y + 5w = -28x + 2y + 8z + 3w = -10 x - 4y - 6z - 5w = 30
A. {(-17w - 10, -13w - 16, 5w + 4, w)}
B. {(3w - 2, -8w + 3, 4w + 9, w)}
C. ?
D. {(24, 10, -6, -2)}
Answer: A
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Multiply.(4
+ 4)2
A. 36 + 32
B. 48 - 32
C. 16 + 32
D. 48 + 32
For the function f, use composition of functions to show that f-1 is as given.Let 
. Show that 
.
What will be an ideal response?
The MISSION of any company should focus on
A. avoiding litigation, such as product liability lawsuits filed by unhappy customers. B. eliminating competition by acquiring competitors or driving them out of business. C. identifying the markets the company wants to serve and the goods and services the company will provide. D. understanding how economic forces, such as interest rates and tax policies might affect the firm's pricing decisions and profitability.
Solve the problem.The area of a triangle with base b and height h is given by the formula 
Find the area of a triangle with base 12 meters and height 12 meters.
A. 144 m2 B. 72 m2 C. 24 m2 D. 24.5 m2