Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
A. 
B. x22
C. 
D. x2
Answer: D
Mathematics
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Solve the problem.Given the following voter profile, determine which candidate (if any) is a Condorcet Candidate and who will be selected using the Borda Method. Does the Borda Method violate the Condorcet criterion for the voter profile? 
A. a, a; no B. a, b; yes C. b, b; no D. b, a; yes
Mathematics
Solve the equation.2(3a - 1)2 + 7(3a - 1) + 3 = 0
A. - 
, - 
B. - 
, 
C. - 
, 
D. - 
, -3
Mathematics
Using Green's Theorem, calculate the area of the indicated region.The astroid r(t) = (10 cos 3 t)i + (10 sin3 t)j, 0 ? t ? 2?
A. 75?
B. 
?
C. 2?
D. 
?
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(5x2 + 11x + 8) - (9x2 + 6x + 14)
A. -4x2 + 5x + 22 B. -4x2 + 5x + 6 C. -4x2 + 5x - 6 D. -4x2 + 20x + 22
Mathematics