Simplify.If Q(x) = x2 - 4, find Q(-2).
A. -6
B. 4
C. 36
D. 0
Answer: D
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Find the indicated control limits.For a production process for which there is a great deal of data since its last modification, the population mean ? and the population standard deviation ? are assumed known. For such a process we have the following values for an R chart:central line = d2?, UCL = D2?, LCL = D1?(The values of d2, D1, and D2 are found in the table of control chart factors). In a bottling factory, after bottling, the volume of juice in seven sample bottles is checked every 30 minutes. For this process, 
and 
Find the central line, UCL, and
LCL for the range. A. 0.08, 0.160, 0.000 B. 0.216, 0.416, 0.016 C. 0.216, 0.154, 0.006 D. 0.203, 0.406, 0.000
Find the slope of the line tangent to the curve at the given value of x.y = 6 - 4x2; x = 1
A. 8 B. -8 C. 14 D. -2
Give all solutions of the nonlinear system of equations, including those with nonreal complex components.xy = 128x - y = 3
A. 
B. 
C. 
D. {(7, -7), (-4, 4)}
Solve the inequality. Express your answer using interval notation.|5x + 2| > 3
A. (-?, -1) or (
, ?)
B. [-1, 
]
C. (-?, -1] or [
, ?)
D. (-1, 
)