Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (x + 2)x
A. x + (2)x-1
B. x ln(x + 2)
C. (x + 2)x
D. ln(x + 2) + 
Answer: C
Mathematics
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Evaluate as instructed.Use f(x) = 2x + 10 and g(x) = x2 + 3 to evaluate (g/f)(-1).
A. 32
B. 2
C. 
D. 12
Mathematics
Use the shortcut for dividing numbers ending in zeros to find the quotient.4000 / 10
A. 140 B. 40 C. 400 D. 0
Mathematics
Determine the constant of variation for the stated condition.t varies jointly as r and s, and t = 72 when r = 60 and s = 30.
A. k = 
B. k = 30
C. k = 
D. k = 25
Mathematics
Determine whether the matrices are inverses.
, 
A. Yes B. No
Mathematics