For the pair of functions, find the indicated domain.f(x) = x2 - 16, g(x) = 2x + 3Find the domain of g ? f.
A. 
? 
B. (-4, 4)
C. (-?, ?)
D. 
Answer: C
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Solve the problem.Approximately one-fifth of all glass bottles distributed will be recycled each year. A beverage company distributes 340,000 bottles. The number still in use after t years is given by the function N(t) = 340,000
t .After how many years will 60,000 bottles still be in use?
A. 1.1 yr B. 0.9 yr C. 1.7 yr D. 2.8 yr
Find the percent using a proportion. Round your answer to the nearest tenth if necessary.$15.46 is what percent of $438.16?
A. 2834.2% B. 3.5% C. 35% D. 283.4%
Solve the problem.As Sunee improves her algebra skills, she takes 0.9 times as long to complete each homework assignment as she took to complete the preceeding assignment. If it took her 55 minutes to complete her first assignment, find how long it took her to complete the fifth assignment. Find the total time she took to complete her first five homework assignments. (Round to the nearest minute.)
A. 32 min; 189 min B. 32 min; 225 min C. 36 min; 225 min D. 36 min; 189 min
Solve the problem.A particle moves so that its velocity (in m/s) is given by 
where t is the time (in seconds). Find the distance traveled between 
and 
A. 1.92 B. 2.05 C. 8.14 D. 0.38