Find (f ? g)(x) and (g ? f)(x).f(x) = 
; g(x) = 4x - 1
A. (f ? g)(x) = 2
(g ? f)(x) = 4
- 1
B. (f ? g)(x) = 2
(g ? f)(x) = 4
- 1
C. (f ? g)(x) = 
(g ? f)(x) = 
D. (f ? g)(x) = 
(g ? f)(x) = 
Answer: B
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Given that p and q each represents a simple statement, write the indicated compound statement in its symbolic form.p: The outside humidity is low.q: The central humidifier is running.r: The air in the house is getting dry.The air in the house is getting dry, if and only if the outside humidity is low and the central humidifier is not running.
A. (p ? q) ? r B. r ? (p ? ~ q) C. r ? (p ? q) D. (r ? p) ? ~ q
Find an equation of variation if the following conditions exist.Suppose m varies directly as p and m = 63 when p = 7.
A. m = 
p
B. m = 56p
C. m = 70p
D. m = 9p
Find z1z2. Express the answer in standard form.z1 = 4(cos 30° + i sin 30°)z2 = 5
A. -10 - 10i
B. 10
- 10i
C. 10 + 10i
D. -10
+ 10i
Solve the equation by factoring.x2 - 6x - 27 = 0
A. {3, 9} B. {3, -9} C. {-3, 9} D. {-3, -9}