Simplify.7.2 - (-18.6) - (-20.0)
A. 8.6
B. -31.4
C. -45.8
D. 45.8
Answer: D
Mathematics
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Find fx, fy, and fz.f(x, y, z) = ln (xy)z
A. fx = - 
; fy = - 
; fz = ln (xy)
B. fx = 
; fy = 
; fz = z ln (xy)z - 1
C. fx = 
; fy = 
; fz = ln (xy)
D. fx = z ln 
; fy = z ln 
; fz = ln (xy)
Mathematics
Graph the function.f(x) = ln(x + 3) 
A. 
B. 
C. 
D. 
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = tan-1 10x
A. p2(x) = 1 + 10x2 B. p2(x) 1 + 5x2 C. p2(x) = 10x D. p2(x) = 1 - 10x2
Mathematics
Solve and graph the solutions.|x - 11| < 10
A. 
B. 
C. 
D. 
Mathematics