Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. - 
B. 6
C. cannot be simplified
D. -6
Answer: D
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Evaluate the integral.
A. 99
B. 
C. 72
D. 
After exercising for a few minutes, a person has a respiratory cycle for which the velocity of airflow is approximated by
?
,
?
where t is the time (in seconds).
(Inhalation occurs when v> 0 and exhalation occurs when v< 0.)
?
Find the number of cycles per minute.
?
A. 12 cycles/min B. 10 cycles/min C. 15 cycles/min D. 13 cycles/min E. 11 cycles/min
Add or subtract. Simplify by combining like radical terms, if possible. Assume all variables and radicands represent positive real numbers.4 
- 2m2p 
A. 6m2p 
B. 2m2p 
C. Cannot simplify
D. 2
Find the optimal mixed row strategy, the optimal mixed column strategy, and the expected value of the game in the event that each player uses his or her optimal mixed strategy.
?
?
A. 
, 
, 
B. ?
, 
, 
C. ?
, 
, 
D. ?
, 
, 
E. ?
, 
, 