Express the integrand as a sum of partial fractions and evaluate the integral.
A. 2 ln 
+ 
tan-1 
+ C
B. 2 ln 
+ tan-1 
+ C
C. 2 ln 
+ 
tan-1 
+ C
D. ln 
+ 
tan-1 
+ C
Answer: C
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Solve the problem.A plane flies 450 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 24 mph, what is the speed of the plane in still air?
A. 192 mph B. 217 mph C. 197 mph D. 182 mph
Provide an appropriate response.Which of the following could not possibly be probabilities?A. -0.26B. 
C. 0D. 0.87
A. A and D B. A, B, and C C. A and C D. B and C E. A and B
Use a calculator to convert from polar to rectangular coordinates. Round to the nearest hundredth.(5.6, 31°)
A. (2.88, 4.80) B. (4.80, 2.88) C. (0.86, 0.52) D. (-4.80, -2.88)
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
+ 
)(
- 
)
A. 3 - 2
B. 10
C. -4
D. 3 - 2