Graph the function defined by a radical expression.f(x) = 
A. 
B. 
C. 
D. 
Answer: D
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Find the curvature of the space curve.r(t) = ti + (sinh t)j + (cosh t)k
A. ? = cosh2 t
B. ? = sinh2 t
C. ? = 
D. ? = 
Determine the family of angles for which the following angle belongs, sketch the angle, and then determine the angle of least positive measure, ?C, coterminal with the given angle.? = -1215°
A. quadrantal family; ?C = 270°
B. quadrantal family; ?C = 180°
C. 
family; ?C = 240°
D. 
family; ?C = 225°
Sketch the graph of f.f(x) = 
x - 4
A. 
B. 
C. 
D. 
Solve.The altitude above sea level of an airplane just after taking off from an airport on a high plateau is given by the linear function h(t) = 1200t + 3421, where h(t) is in feet and t is the time in minutes since take-off. Find the altitude of the airplane after 8 minutes.
A. 9600 feet B. 13,021 feet C. 13,121 feet D. 12,921 feet