Find the sum.- 
+ 
A. 
B. 
C. - 
D. - 
Answer: B
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If 
represents federal defense spending t years after 2000, then 
represents federal defense spending in 2012.
Answer the following statement true (T) or false (F)
Simplify.- 
A. -84
B. -22
C. -6
D. -14
In ?ABC, if ?A = 50°, a = 10 and c = 12, find ?B, ?C and b. Round to the nearest tenth.
The intensity of sound I (as a multiple of the average minimum threshold of hearing intensity) is related to the decibel level D (or loudness of sound) according to 
. A decibel reading of 140 is at the threshold of pain. If 
is the intensity of this threshold and
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, express the ratio 
as a power of 10.
?
A. 
B. 
C. 
D. 
E. 