Find the domain of the composite function f?g.f(x) = 5x + 45, g(x) = x + 5
A. (-?, 14) ? (14, ?)
B. (-?, ?)
C. (-?, -9) ? (-9, -5) ? (-5, ?)
D. (-?, -14) ? (-14, ?)
Answer: B
Mathematics
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Write the given iterated integral as an iterated integral with the order of integration interchanged.
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations.x2 - y2 = 25x + y = 5
A. (-5, 0), (0, 5) B. (5, 0) C. (5, 0), (-5, 0) D. (-5, 0), (5, 5)
Mathematics
Simplify the expression.
?
?
A. 
B. 
C. 
D. 
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which hour did the temperature increase the most?
A. 12 p.m. to 1 p.m. B. 9 a.m. to 10 a.m. C. 1 p.m. to 2 p.m. D. 10 a.m. to 11 a.m.
Mathematics