Simplify. Assume that all variables represent positive real numbers.

A.
B.
C.
D.

Answer: C

Mathematics

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Find all the first order partial derivatives for the following function.f(x, y) = ln 

A. fx(x, y) = - ; fy(x, y) = 
B. fx(x, y) = ; fy(x, y) = 
C. fx(x, y) = -ln  ; fy(x, y) = ln 
D. fx(x, y) = -ln ; fy(x, y) = ln 

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Mathematics

Use factoring techniques to solve the equation.x2 + x - 20 = 0

A. {-5, 4} B. {-5, -4} C. {-4, 5} D. {4, 5}

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Mathematics

Determine if the argument is valid or a fallacy. Give a reason to justify answer.If you eat well, you will be well.If you are well, you will be happy.If you eat well, you will be happy.

A. Valid by modus tollens B. Fallacy by fallacy of the converse C. Fallacy by fallacy of the inverse D. Valid by reasoning by transitivity

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Mathematics

Simplify using order of operations.

A. -1940 B. -320 C. 320 D. 1940

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Mathematics