Given 
and 
, evaluate 
.
?
A. 0
B. 
C. 
D. 1
E. 
Answer: D
Mathematics
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Provide an appropriate response.(a) Graph the curves r = 
and r = 
.(b) Find polar coordinates of the points of intersection of the curves in part (a).(c) Show that at the points of intersection the tangent lines to the curves are perpendicular to each other.
What will be an ideal response?
Mathematics
Evaluate the expression.
? 
A. 
B. 
C. 
D. 
Mathematics
Match the given equation with one of the graphs.x2 - y2 = 81
A. 
B. 
C. 
D. 
Mathematics
Write an equation to describe the situation.Alan's dog weighs 28 lb which is 
of Alan's weight w.
A. 28w = 
B. 2w = 28
C. 
= 28
D. w = 
? 28
Mathematics