Provide an appropriate response.Find any local extrema (maxima, minima, or saddle points) of 
given that 
and 
A. Local minimum at 
B. Saddle point at 
C. Local maximum at 
D. Local minimum at 
Answer: A
Mathematics
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Graph the system of inequalities.y ? 2x - 1x + y ? 4
A. 
B. 
C. 
D. 
Mathematics
Find the domain of the rational function.f(x) = 
A. {x|x ? -8, x ? 8, x ? -9} B. {x|x ? -8, x ? 8} C. {x|x ? 0, x ? -64} D. all real numbers
Mathematics
Simplify the radical expression. Assume that all variables represent positive real numbers. 
A. 5a2b4
B. 5ab2
C. 5ab2
D. 5a2 b4
Mathematics
Determine whether the following is a difference of squares.x2+ 49
A. Yes B. No
Mathematics