For the given equation, state whether the directrix is vertical or horizontal and give its location in relation to the pole.r = 
A. Horizontal, 5 units above the pole
B. Horizontal, 5 units below the pole
C. Horizontal, 
units above the pole
D. Horizontal, 
units below the pole
Answer: C
Mathematics
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Calculate the circulation of the field F around the closed curve C.F = xyi + 4j , curve C is r(t) = 4 cos ti + 4 sin tj, 0 ? t ? 2?
A. 8
B. 
C. - 
D. 0
Mathematics
Solve the problem.The perimeter of a rectangle must be no greater than 
The width must be 
Find the greatest possible value for the length of the rectangle.
A. 47 m B. 52 m C. 19 m D. 80 m
Mathematics
Find 
by solving the initial value problem.
?
; 
What will be an ideal response?
Mathematics
Graph the function.f(x) = 2x + 1
A. 
B. 
C. 
D. 
Mathematics