Simplify.
A. x3/2
B. x11/5
C. x5/11
D. x8/2
Answer: A
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 7
B. 
; 7
C. 
; 7
D. 
; 7
Identify where f is increasing or where f is decreasing, as indicated. Round your answer to two decimal places when appropriate.f(x) = x4 - 12x2 + 35; decreasing
A. (-2.45, 0) ? (2.45, ?) B. (-2.65, -2.24) ? (2.24, 2.65) C. (-?, -2.45) ? (0, 2.45) D. (-?, -2.65) ? (-2.24, 2.24) ? (2.65, ?)
Divide.
A. 
+ 
i
B. 
+ 
i
C. 
- 
i
D. 
+ 
i
Solve the problem.The concentration of a certain drug in the bloodstream t minutes after swallowing a pill containing the drug can be approximated using the equation 
where C(t) is the concentration in arbitrary units and t is in minutes. Find the rate of change of concentration with respect to time at t = 16 minutes.
A. - 
units/min
B. - 
units/min
C. - 
units/min
D. - 
units/min