Simplify the radical. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the equation for solutions in the interval [0, 2?).
cos 2x = 1
A. 
B. 
C. ?
D. 
Mathematics
Match the polynomial function with the graph.y = -x4 + 9x2
A. 
B. 
C. 
D. 
Mathematics
Find the partial fraction decomposition for the rational expression.
A. - 
+ 
+ 
B. - 
+ 
+ 
C. - 
- 
+ 
D. 
+ 
- 
Mathematics
For problems 9-14 represent the system of equations with an augmented matrix. Solve the system by rewriting the matrix in reduced row echelon form.
A. 
B. 
C. 
D. infinitely many solutions
E. no solution
Mathematics