Evaluate the expression.
A. 19
B. 20
C. 21
D. 38
Answer: A
Mathematics
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Find an equation for the hyperbola described. Graph the equation.Focus at (
, 0); vertices at (-5, 0), (5, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
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The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(- 5, - 
)
A. constant B. decreasing C. increasing
Mathematics
Determine whether the system of equations is consistent or inconsistent. If the system is consistent, determine whether the equations are dependent or independent.
A. Dependent B. Inconsistent C. Independent
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Find the exact value. If the value of the function is not defined, write undefined.csc 
A. 0 B. Undefined C. 2 D. -1
Mathematics