Consider the simplex tableau that is the final one in a problem to maximize x + 2y + 3z. 
What are the values of x, y and z when the maximum value of x + 2y + 3z occurs?
A. x = 19, y = 2, z = 5.
B. x = 0, y = 2, z = 5.
C. x = 2, y = 5, z = 0.
D. x = 2, y = 1, z = 0.
E. none of these
Answer: B
Mathematics
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Evaluate the integral by using multiple substitutions.
dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mathematics
Find the center and radius and draw the graph.(x - 5)2 + (y - 3)2 = 25
A. 
center (-5, 3); radius 5
B. 
center (-5, -3); radius 5
C. 
center (5, -3); radius 5
D. 
center (5, 3); radius 5
Mathematics
A system of nonlinear equations is given. Sketch the graph of the equation of the system and then determine the number of real solutions to the system. Do not solve the system.x2 + y2 = 252y + x = 5
A. Two
B. One
C. Two
D. Zero
Mathematics
Find the limit or state that it does not exist.
A. -1 B. 3 C. 1 D. Does not exist
Mathematics