Simplify the rational expression. Assume that no variable has a value which results in a denominator with a value of zero.
A. 7
B. - 
C. 
D. -7
Answer: D
Mathematics
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Find the center of mass of a thin plate of constant density covering the given region.The region between the x-axis and the curve y = 3csc2 x, 
? x ? 
A. 
= 
, 
= 3
B. 
= 
, 
= 2
C. 
= 
, 
= 4
D. 
= 
, 
= 
Mathematics
Find a formula for the function graphed.
A. 
B. 
C. 
D. 
Mathematics
Write the quotient in the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 1 + 1i
D. 
+ 1i
Mathematics
Insert "?" or "?" in the blank to make the statement true.{11, 13, 15} {x | x is an odd counting number}
A. ? B. ?
Mathematics