Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Answer: C
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. 2 ln 
+ 
tan-1 
+ C
B. ln 
+ 
tan-1 
+ C
C. 2 ln 
+ 
tan-1 
+ C
D. 2 ln 
+ tan-1 
+ C
Find all the second order partial derivatives of the given function.f(x, y) = x2 + y - ex+y
A. 
= 2 - y2ex+y; 
= -x2ex+y; 
= 
= - y2ex+y
B. 
= 2 - ex+y; 
= - ex+y; 
= 
= -ex+y
C. 
= 1 - ex+y; 
= - ex+y; 
= 
= -ex+y
D. 
= 2 + ex+y; 
= ex+y; 
= 
= ex+y
Solve the problem.A ramp leading to the entrance of a building is inclined upward at an angle of 9°. A suitcase is to be pulled up the ramp by a handle that makes an angle of 27° with the horizontal. How much force must be applied in the direction of the handle so that the component of the force parallel to the ramp is 50 lbs.?
A. 51.66 lbs B. 55.43 lbs C. 47.55 lbs D. 155.9 lbs
Graph the functions in the same rectangular coordinate system.f(x) = 2x and g(x) =log2x
A. 
B. 
C. 
D. 