Solve for the variable.4 + x = -30
A. -34
B. 26
C. -26
D. 34
Answer: A
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Sketch D and g(D) from the description of D and change of variables 
u = xy, v = 
where D is the rectangle 1 ? u ? 4, 
? v ? 2
?
A.
 ? |  |
B.
 ? |  |
C.
 ? |  |
D.
 ? |  |
Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|x| + 4 ? 14
A. (-?, -10] ? [10, ?)
B. [10, ?)
C. [-10, 10]
D. [18, ?)
Solve the system of equations by elimination.6x + 3y = 512x - 6y = 38
A. (3, -10) B. (10, -3) C. (-3, 10) D. (-10, 3)
Determine any local or absolute extrema as indicated.Use the graph of f to estimate the absolute extrema.
A. Absolute maximum: 0; absolute minima: -2 and 2 B. Absolute maximum: ?; absolute minima: -2 and 2 C. Absolute maximum: ?; absolute minimum: -4 D. No absolute maximum; absolute minimum: -4