Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 3m - 5
D. 
Answer: A
Mathematics
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Determine whether the function is a solution of the wave equation.w(x, t) = cos (2t - 2cx), c ? 1
A. No B. Yes
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Use the graph to evaluate the limit.
f(x)
A. does not exist B. -1 C. 2 D. -2
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Solve.David recently switched to a long distance phone company which charges a monthly fee of $5.95 plus $0.04 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is 
What is the implied domain of this linear function?
A. [5.95, ?) B. [0, 595] C. [0, ?) D. (0, ?)
Mathematics
Find the gross pay at the given rate. Round to the nearest cent.22.8 hours at $7.25 per hour
A. $172.55 B. $165.30 C. $158.05 D. $170.30
Mathematics