Express the integrand as a sum of partial fractions and evaluate the integral.
A. ln 
+ 
tan-1 
+ C
B. 3 ln 
+ 
tan-1 
+ C
C. 3 ln 
+ 
tan-1 
+ C
D. 3 ln 
+ tan-1 
+ C
Answer: C
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The concentration x of a certain drug in an organ after t minutes is given by 
. Find the concentration of the drug at 20 minutes. Round your answer to four decimal places.
?
A. 0.0600 B. 0.0108 C. -0.0553 D. 0.0692 E. 0.8647
Find the complex zeros of the quadratic function.G(x) = x2 + 16
A. x = 4i B. x = 4 C. x = -4, x = 4 D. x = -4i, x = 4i
Write as the sum and/or difference of logarithms. Express powers as factors. log18
A. log1811 + log1811 B. log1813 - log1811 C. log1811 - log1813 D. log1811 ÷ log1813
Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = -x2 - 3x - 10
A. 
, (0, -10)
B. No x-intercepts, (0, 10)
C. 
, (0, 10)
D. No x-intercepts, (0, -10)