For the pair of functions, find the indicated composition.f(x) = 
x, g(x) = - 
xFind (f ? g)(x).
A. 0
B. -x
C. 1
D. x
Answer: B
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Provide an appropriate response.The cost C of processing exhaust gases so that you remove all but x percent of the pollutants is given by 
Find the values of x for which C < 0. Discuss the meaning of the results.
What will be an ideal response?
Find a polynomial function f(x) of least possible degree having the graph shown.
A. f(x) = 
(x + 2)(x - 3)
B. f(x) = 
(x + 2)(x - 3)2
C. f(x) = 
(x - 2)(x + 3)
D. f(x) = 
(x - 2)(x + 3)2
The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. 
A. Maximum at 12 for x1 = 1, s1 = 3, s2 = 1 B. Maximum at 48 for x1 = 3, s1 = 1, s3 = 1 C. Maximum at 24 for x1 = 1, s1 = 1, s2 = 3 D. Maximum at 4 for x1 = 4, s2 = 1
Identify the radicand.s2t
A. 
B. s2t
C. 
D. (s2t)