Find the area of the specified region.Inside the circle r = 2 cos ? + 9 sin ?
A. 
B. 
+ 9
C. 9?
D. 
Answer: D
Mathematics
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Use inequality notation to describe the set. r is positive
A. r> 0 B. r? 0 C. r? 0 D. r
Mathematics
Write as mixed number.
A. 172
B. 
C. 172
D. 15
Mathematics
Solve the equation for x.
= 12
A. {4} B. {-2} C. {12} D. {18}
Mathematics
Find the difference.
- 
A. 1
B. - 
C. 
D. - 
Mathematics