Solve the problem.Suppose the following matrix represents the input-output matrix of a primitive economy. How much of each commodity should be produced to produce 5 bushels of yams and 1 pigs?
A.
X = 
B.
X = 
C.
X = 
D.
X = 
Answer: D
Mathematics
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Solve the equation.4x + 14 = 0
A. 
B. 
C. 
D. 
Mathematics
Multiply.4x2(2x + 4)
A. 8x + 16 B. 24x2 C. 8x3 + 4 D. 8x3 + 16x2
Mathematics
Solve the absolute value equation.
+ 2 = 8
A. x = - 
, 
B. x = 
C. no solution
D. x = - 
, 
Mathematics
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable. 4x - y + 5z = 71 6x + 9y + 3z = 123 8x - 9y + z = 35
A. {(9, 8, 5)} B. ? C. {(-9, 5, 18)} D. {(9, 5, 8)}
Mathematics