Use the graph of y = 
to solve the equation 
where 
and y2 represent linear functions.
A. {-7}
B. {0}
C. {13}
D. {-6.5}
Answer: D
Mathematics
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Solve the problem.Two sailboats leave a harbor in the Bahamas at the same time. The first sails at 21 mph in a direction 350°. The second sails at 28 mph in a direction 210°. Assuming that both boats maintain speed and heading, after 4 hours, how far apart are the boats?
A. 125.1 mi B. 143.7 mi C. 139 mi D. 184.4 mi
Mathematics
Find the requested function value.f(x) = 
, g(x) = 9x + 4Find (g ? f)(31).
A. 58
B. 1698
C. 78
D. 
Mathematics
Graph using a graphing calculator.r(x) = 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics