Add and subtract as indicated.6 + (-10) - (-18) + 20
A. 18
B. -2
C. -6
D. 34
Answer: D
Mathematics
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Simplify the fraction to lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Find the domain of the given function.f(x) = 
A. [- 2, ?)
B. (-?, - 2]
C. (-?, ?)
D. (-?, - 
]
Mathematics
Use graphical methods to find all real solutions to the following equation. Express solutions rounded to the nearest hundredth.0.37x3 - 5.72x2 + 5.23x + 8.25 = 0
A. {0.81, -1.91, 14.36} B. {-0.82, 8.25, 1.91} C. {-0.81, 1.91, 14.37} D. {0.82, -8.25, -1.91}
Mathematics
Find all solutions of the equation in the complex number system.x4 - 16 = 0
A. {2i, -2i} B. {-2, 2, 2i, -2i} C. {2, 2i} D. {-2, 2}
Mathematics