Find the circumference. Leave your answer in terms of pi.A semicircle with radius 6 yd
A. 36? yd
B. 6? yd
C. 12? yd
D. 26? yd
Answer: B
Mathematics
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Find the domain of the rational expression. 
A. {x|x is a real number and x ? 8 and x ? -5} B. {x|x is a real number and x ? 8 and x ? 5} C. {x|x is a real number and x ? 8 and x ? -8 and x ? -5} D. {x|x is a real number and x ? 8 and x ? -8 and x ? 5}
Mathematics
Sketch the vectors u and w with angle ? between them and sketch the resultant.
= 3, 
= 12, ? = 40°
A. 
B. 
Mathematics
Write the quotient in the form a + bi.
A. 1 + 2i
B. 1 - 2i
C. 
- 
i
D. 
+ 
i
Mathematics
Complete the factoring.x2 - 5x - 24 = (x + 3)( )
A. 8 - x B. x + 8 C. -x - 8 D. x - 8
Mathematics