Add or subtract as indicated.
- 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 
B. 
C. 
D. 
Mathematics
Find the equilibrium solutions of the equation of change 
. Round your answers to two decimal places, if necessary.
?
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Mathematics
Find the value of d2y/dx2 at the point defined by the given value of t.x = csc t, y = 4 cot t, t = 
A. -8
B. 8
C. 4
D. -12
Mathematics
Evaluate the expression, if possible.32-4/5
A. - 
B. 
C. 16
D. not a real number
Mathematics