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?

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Determine the validity of the argument.All businessmen wear suits.Aaron wears suits.Therefore Aaron is a businessman.

A. Valid B. Not valid

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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