Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 9 - 6 cos ?
A. 
?
B. 
?
C. 117?
D. 99?
Answer: D
Mathematics
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Find 
and 
.f(x, y) = 4x - 6y2 - 9
A. 
= 4x; 
= -12y
B. 
= -12y; 
= 4
C. 
= 4; 
= -12y
D. 
= -5; 
= -12y - 9
Mathematics
Find the slope of the polar curve at the indicated point.r = 1 - sin ?, ? = 
A. 
B. 2
C. 
D. 0
Mathematics
Use the graph to answer the question. 
What were the total sales for the first 6 months of 2006?
A. $366,000 B. $240,000 C. $46,000 D. $290,000
Mathematics
Find the slope of the line passing through the pair of points. ? P(-4, 3); Q(2, -9). ?
A. m = 1 B. m = -7 C. m = 4 D. m = -2 E. m = -1
Mathematics