Simplify the complex rational expression.
A. 
B. 
C. 
D. 4x3
Answer: B
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Express as a single logarithm and, if possible, simplify.ln cos ? - ln 
A. ln cos ?
B. ln 
C. ln 
D. ln 10
Write the compound statement in symbolic form. Let letters assigned to the simple statements represent English sentences that are not negated. Use the dominance of connectives to show grouping symbols (parentheses) in symbolic statements.If I like the song or the DJ is entertaining then I do not change the station.
A. (p ? q) ? ~r B. p ? (q ? r) C. p ? (q ? ~r) D. (p ? q) ? r
Determine the validity of the argument.Sailboats need a windy day to sail.Today is a windy day.Therefore today is a good day for sailing sailboats.
A. Valid B. Not valid
Solve the problem.Suppose the sales of a particular brand of appliance satisfy the relationship 
, where S(x) represents the number of sales in year x, with 
corresponding to 2010. In what year would the sales be 4320?
A. 2019 B. 2021 C. 2018 D. 2020