Find all the first order partial derivatives for the following function.f(x, y, z) = ln (xy)z
A. 
= - 
; 
= - 
; 
= ln xy
B. 
= 
; 
= 
; 
= z ln (xy)z-1
C. 
= z ln 
; 
= zln
; 
= ln xy
D. 
= 
; 
= 
; 
= ln xy
Answer: D
Mathematics
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Simplify the radical expression. Assume that variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Explain why the equation x2 = 25 has two real number solutions, while the equation 
has only one real number solution.
What will be an ideal response?
Mathematics
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.y = 4f(x)
A. (5, 3) B. (3, 8) C. (2, 16) D. (8, 4)
Mathematics
Simplify. Do not use negative exponents in your answer.
3
A. 
B. s9t9
C. -s9t9
D. 
Mathematics