Solve.
+ 
= 4
A. 3
B. No solution
C. -3
D. 3, 
Answer: D
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Use Identities to find the exact value.cos 
A. 
- 
B. 
C. 
D. 
+ 
Solve the equation.
- 5 = 
A. - 
B. 2
C. -2
D. No solution
Determine the domains of f and g.
?
?
A. Domain of f: all real numbers x except 
Domain of g: all real numbers x except x = 0
B. Domain of f: all real numbers x except
Domain of g: all real numbers x except x = 0
C. Domain of f: all real numbers x except x = 0
Domain of g: all real numbers x
D. Domain of f: all real numbers x except
Domain of g: all real numbers x
E. Domain of f: all real numbers x
Domain of g: all real numbers x
Solve the problem.Assume that the mathematical model C(x) = 14x + 170 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured if the cost is to be kept between $409,000 and $605,000?
A. {x 
420 < x < 560}
B. {x 
450 < x < 600}
C. {x 
300 < x < 450}
D. {x 
280 < x < 420}