For the following questions assume that all variables in radicands are non-negative numbers. Simplify.
A. 
i
B. 
i
C. 
D. 
E. None of these
Answer: D
Mathematics
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Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Mathematics
Graph. Note that the equation is in standard form.x - y = 2
A. 
B. 
C. 
D. 
Mathematics
The calculator graphs shows the x-values of the x-intercepts of the graph of the polynomial in the equation. Use the graphs to solve the equation.4x2 -20x +21 = 0
A. {-3.5, -1.5} B. {1.5, 3.5} C. {6, 14} D. {-29, 21}
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. - 
B. - 
C. - 
D. - 
Mathematics