Find all numbers for which the rational expression is not defined.
A. None
B. a = -3
C. a = 3
D. a = 0
Answer: C
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Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 25 B. 1250 C. 250 D. 125
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Add the given pair of complex numbers geometrically.z1 = -11 + 4i, z2 = 3
A. -14 + 4i B. -8 + 4i C. -14 + 7i D. -8 + 7i
Expand the expression using the Binomial Theorem.(x - 2y)6
A. x6 - 12x5y - 48x4y2 - 144x3y3 - 192x2y4 - 192xy5 - 64y6 B. x6 - 12x5y - 64x4y2 - 40x3y3 - 64x2y4 - 12xy5 - 2y6 C. x6 - 12x5y + 24x4y2 - 36x3y3 + 24x2y4 - 12x y5 + 2y6 D. x6 - 12x5y + 60x4y2 - 160x3y3 + 240x2y4 - 192xy5 + 64y6