Rewrite the expression in terms of exponentials and simplify the results.4 cosh (ln x) + 14 sinh (ln x)
A. 9x
B. 9
C. 9x - 
D. 0
Answer: C
Mathematics
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Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z - w=6 2x - y + 3z + 4w=-4 4x + 2y - z - w=-13 -x - 2y + 4z + 3w=12
A. {(- 
, 
, 
, - 
)}
B. {(4, -3, -5, 2)}
C. {(
, - 
, - 
, 
)}
D. {(-4, 3, 5, -2)}
Mathematics
Write the form of the partial fraction decomposition of the rational expression. It is not necessary to solve for the constants.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
D. 
+ 
+ 
Mathematics
Find the value of the expression.
A. 
B. 
C. 
D. 
Mathematics
Use properties of real numbers to calculate the expression mentally.1 + 6 + 4 + 9
A. 30 B. 10 C. 20 D. 40
Mathematics