Write each mixed number as an improper fraction.11
A. 
B. 
C. 
D. 
Answer: D
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Use Lagrange multipliers to find the maximum and minimum values of the function f( x,y,z) = 5x - y - 5z subject to the constraints x + 2y - z = 0 and x² + 4y² = 1.
What will be an ideal response?
Find A?B, the union of sets A and B.
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Find the absolute maximum and absolute minimum values of the function, if they exist, over the indicated interval, and indicate the x-values at which they occur.f(x) = 
; [0, 3]
A. Absolute maximum = 3 at x = 1; absolute minimum = 0 at x = 0 B. Absolute maximum = 3 at x = 1; absolute minimum = -3 at x = 0 C. Absolute maximum = 0 at x = 0; absolute minimum = -1.8 at x = 1 D. Absolute maximum = 1.8 at x = 1; absolute minimum = 0 at x = 0
Find the product.(2x2 - 3x - 2)(x2 + 5x - 5)
A. 2x4 + 10x3 - 27x2 + 5x + 10 B. 2x4 + 7x3 - 27x2 + 5x + 10 C. 2x4 + 10x3 - 25x2 + 5x + 10 D. 2x4 + 7x3 - 25x2 + 5x + 10