Perform the indicated operations and simplify.
+ 
A. 
B. 
C. 
D. 
Answer: D
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (x - y)i + (x + y)j; C is the triangle with vertices at (0, 0), (2, 0), and (0, 5)
A. 0 B. 20 C. 10 D. 50
Solve the problem.On a sunny day, a flag pole and its shadow form the sides of a right triangle. If the hypotenuse is 
long and the shadow is 40 meters, how tall is the flag pole?
A. 30 m B. 90 m C. 64 m D. 100 m
Use a polar coordinate system to plot the point with the given polar coordinates.(2, 315°)
A. 
B. 
C. 
D. 
The perimeter 
of a rectangle with length 
and width 
is given by the formula
. Solve this formula for 
.If the perimeter of a certain
rectangle is 59.42 meters and its length is 18.75 meters, find its width.
A. 
B. 
C. 
D. 
E. 