Find the domain of the composite function f?g.f(x) = 
,g(x) = 
A. (-?, -8) or (-8, -1) or (-1, 0) or (0, ?)
B. (-?, -1) or (-1, 0) or (0, ?)
C. (-?, ?)
D. (-?, -8) or (-8, 0) or (0, ?)
Answer: B
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Parametric equations and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 16t2, y = 4t, -? ? t ? ?
A. x = y2
Entire parabola, bottom to top (from fourth quadrant to origin to first quadrant)
B. y = x2
Entire parabola, right to left (from first quadrant to origin to second quadrant)
C. x = y2
Entire parabola, top to bottom (from first quadrant to origin to fourth quadrant)
D. y = x2
Entire parabola, left to right (from second quadrant to origin to first quadrant)
Use the order of operations to evaluate each problem.
A. 63 B. 21 C. 50 D. 7
Perform the indicated operation and simplify if possible.
+ 
A. 
B. 
C. 
D. 6x + 7
Fill in the blank with the correct inequality symbol.If x < -8, then x + 8 
0.
A. > B. ? C. < D. ?