Use the graph shown to determine if the limit exists. If it does, find its value.
f(x)
A. 1
B. 0
C. 2
D. does not exist
Answer: C
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y, z) = x2y + y2z + xz2
A. 
= 2xy + z2; 
= x2 + 2yz; 
= y2 + 2xz
B. 
= 2xy + z2; 
= x2 + yz; 
= y2 + xz
C. 
= 2y + z2; 
= x2 + 2z; 
= y2 + 2x
D. 
= 2xy; 
= x2 + 2yz; 
= y2 + 2xz
Mathematics
Classify the system as independent, inconsistent, or dependent.x + y = 2x + y = 5
A. Dependent B. Inconsistent C. Independent
Mathematics
Solve the logarithmic equation.ln x - ln (x - 3) = ln 5
A. 2
B. 
C. 
D. ?
Mathematics
Indicate the coordinates of the vertex of the parabola.y = x2 + 4x + 8
A. (4, -4) B. (4, -2) C. (-2, 4) D. (-4, 2)
Mathematics