Solve the following systems of linear equations using Gaussian elimination.
x + 3y = 12
2x + 5y =19
(?3, 5)
Mathematics
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Solve the congruence.2 - x ? 8 (mod 9)
A. 5 B. 4 C. 3 D. 8
Mathematics
Evaluate the absolute value.|1|
A. 1 B. -1 C. does not exist D. 0
Mathematics
Write the mixed number as an improper fraction.7
A. 
B. 
C. 
D. 
Mathematics
Find the total value of the given income stream and also find its future value (at the end of the given interval) using the given interest rate.
?
,
, at 8%
?
A. 
,
B. 
,
C. 
,
D. 
,
E. 
,
Mathematics