Solve the system of equations. If the system is dependent, express solutions in terms of the parameter z.2x + y - z = 2 x - 3y + 2z = 17x - 7y + 4z = 7
A. (1, 0, 0)
B. (2, 5, 7)
C. 
for any real number z
D. No solution
Answer: C
Mathematics
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Simplify the expression. Include absolute value bars where necessary.
A. -8x + 2
B. 
C. -2x - 4
D. -2x + 4
Mathematics
Find all the first order partial derivatives for the following function.f(x, y, z) = xz
A. 
= z
; 
= - 
; 
= x
B. 
= z
; 
= - 
; 
= x
C. 
= z
; 
= 
; 
= x
D. 
= z
; 
= 
; 
= x
Mathematics
Sketch a continuous curve that has the given characteristics.(a) Defined everywhere except on the x-axis, which is a horizontal asymptote, and the y-axis, a vertical asymptote.(b) Decreasing everywhere it is defined(c) Concave downward for ? < x < 0(d) Concave upward for 0 < x < ?(e) f'(1) = f'(-1) = 0 
What will be an ideal response?
Mathematics
Convert as indicated.
oz to pounds
A. 
lb
B. 6
lb
C. 
lb
D. 4
lb
Mathematics