Simplify the expression by combining any like terms.7z - 10z + z
A. -4z
B. -3z + z
C. -3z
D. -2z
Answer: D
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = x ln (y - x)
A. 
= 
; 
= - 
; 
= 
= 
B. 
= 
; 
= - 
; 
= 
= 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= 
; 
= 
= 
Mathematics
Solve the equation numerically by completing the given table of values.
= 
A. 
B. 2
C. 0
D. -2
Mathematics
Solve the system of linear equations. x - 2y = 182x - 2y = 26
A. (8, -5) B. (9, 8) C. No solution D. (9, -6)
Mathematics
Graph the parabola.(y - 4)2 = 4(x - 1)
A. 
B. 
C. 
D. 
Mathematics