Find the one-sided limit.
(2 cos x)
A. 0
B. -2
C. 2
D. does not exist
Answer: C
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Solve the problem.A convention manager finds that she has $1320 made up of twenties and fifties. She has a total of 48 bills. How many fifty-dollar bills does the manager have?
A. 36 fifty-dollar bills B. 12 fifty-dollar bills C. 8 fifty-dollar bills D. 48 fifty-dollar bills
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(2, -2)} B. {(-2, -3)} C. no solution; ? D. {(3, -3)}
Multiply.
(-6)
A. 
B. - 
C. - 
D. 
Use the graph to determine the domain and range of the function.
A. domain: all real numbers range: all real numbers B. domain: all real numbers range: {y|y ? 0} C. domain: {x|x ? 0} range: {y|y ? 0} D. domain: {x|x ? 0} range: all real numbers