Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.
A. x1/3
B. 
C. x4/3
D. 
Answer: A
Mathematics
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Find all values of the variable for which the rational expression is undefined.
A. -9 B. 19 C. 0 D. 9
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Find the cofactor of the indicated element.a13
A. -5 B. -8 C. -1 D. 1
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Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (0, -20), (0, 20); F: (0, -16), (0, 16) B. V: (-20, 0), (20, 0); F: (-16, 0), (16, 0) C. V: (0, -20), (0, 20); F: (-12, 0), (12, 0) D. V: (-20, 0), (20, 0); F: (0, -12), (0, 12)
Mathematics
Find the mode.20, 38, 46, 38, 49, 38, 49
A. The mode is 49. B. The mode is 39.7. C. The mode is 38. D. The mode is 46.
Mathematics