Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. 6 ln 
+ 
ln 
+ 
tan-1 
+ C
B. ln 
+ 
ln 
+ tan-1 
+ C
C. 6 ln 
+ 
ln 
+ sin-1 
+ C
D. 6 ln 
- 
ln 
- tan-1 x + C
Answer: A
Mathematics
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A. 
B. {0}
C. {0, ?}
D. 
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Find the inverse of the function.f(x) = e7x
A. f-1(x) = -7 ln x
B. f-1(x) = ln
C. f-1(x) = 
ln x
D. f-1(x) = 7 ln x
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Solve the equation.log2x = -3
A. 
B. 
C. 
D. 
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In one individual, the percent alcohol level t minutes after two shots of whiskey is given by 
. Find the blood alcohol level after 13 minutes. Round to the nearest thousandths.
?
A. 0.157 % B. 0.118 % C. 0.143 % D. 0.457 % E. 0.285 %
Mathematics