Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 sin t - sin 4t, y = 4 cos t - cos 4t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If the Hamilton Method is used to apportion legislative seats to four states with the populations given in the table, then the Alabama Paradox occurs when the number of seats being apportioned increases from 204 to 205. 
In which state does the paradox show up?
A. d B. c C. a D. b
Mathematics
Consider the following function.
Determine the values of a for which 
exists.
Mathematics
Solve the system of linear equations using the elimination method.
A. (2, 6, 9) B. (4, 9, -2) C. (-2, 9, 4) D. (2, 9, 6)
Mathematics