Solve the system of equations. Let z be the parameter. 7x + 3y + 5z = 0 3x + y + 2z = 0
A. 
B. 
C. (z, z, z)
D. 
Answer: A
Mathematics
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Solve the problem.If f(x) is a differentiable function and f ' (c) = 0 at an interior point c of f's domain, and if 
for all x in the domain, must f have a local minimum at x = c? Explain.
What will be an ideal response?
Mathematics
Determine the validity of the argument.All businessmen wear suits.Aaron wears suits.Therefore Aaron is a businessman.
A. Valid B. Not valid
Mathematics
Find the optimal row or column strategy of the matrix game.Let M be the matrix game having payoff matrix 
.Find the optimal row strategy.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Find the domain of the function.f(x) = 
A. (-?, 14]
B. (
, ?)
C. (-?, ?)
D. (-?, 14) ? (14, ?)
Mathematics