Simplify the expression.
A. 
B. - 
C. 
D. 
Answer: A
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Rewrite the expression in terms of exponentials and simplify the results.10 cosh (ln x)
A. 5(ex+ e-x)
B. 0
C. 5x
D. 5
Solve the equation.e2x - 1 = (e6)-x
A. 
B. 
C. {0}
D. 
Use transformations to graph the function.y = sin (x + ?)
A. 
B. 
C. 
D. 
Solve the problem.A person with no more than $2000 to invest plans to place the money in two investments, telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 4 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let 
to be invested in telecommunications and 
to be invested in pharmaceuticals.
A. x + y ? 2000 x ? 4y x ? 0 y ? 0 B. x + y = 2000 x ? 4y x ? 0 y ? 0 C. x + y ? 2000 4x ? y x ? 0 y ? 0 D. x + y = 2000 y ? 4x x ? 0 y ? 0