Evaluate the absolute value expression.
- 
A. 8
B. -2
C. 2
D. -8
Answer: C
Mathematics
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Estimate the error that is made by approximating the sum of the given series by the sum of the first five terms.
A. 0.025 B. 0.1903 C. 0.2231 D. 0.1608
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Decide whether or not the given equation is an identity.csc 
= 2 cos 
csc ?
A. Yes B. No
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Find the center of mass of a thin plate of constant density covering the given region.The region in the first and fourth quadrants enclosed by the curves 
and 
and by the lines 
and 
A. 
= 0, 
= 
B. 
= 
, 
= 0
C. 
= 
, 
= 0
D. 
= 
, 
= 0
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Rewrite the expression with a rational exponent.(
)7
A. (23xy)2/7
B. 
C. 
D. (23xy)7/2
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