Find the derivative.y = ex ln x, x > 0
A. 
B. 
C. 
D. ex ln x
Answer: B
Mathematics
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Find the indicated composition.f(x) = 
; g(x) = 8x + 5Find (g ? f)(x).
A. (g ? f)(x) = x - 
B. (g ? f)(x) = 8x + 35
C. (g ? f)(x) = x
D. (g ? f)(x) = x + 10
Mathematics
Use = or ? for ? to write a true sentence.
? 
A. ? B. =
Mathematics
Use Descartes's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation.9x3 - 5x2 + 5x + 5 = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.4x + 4y - 4z = -2116x + 17y - 15z = -78x + 9y - 7z = 12
A. 
B. 
C. 
D. No solution
Mathematics