Find the domain of the given function.f(x) = 
A. all real numbers x where x > 
B. all real numbers x where x > - 6
C. all real numbers x where x ? - 
D. all real numbers x where x ? 6
Answer: D
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Evaluate the requested trigonometric function using the information given. cos ? = 
; 3?/2 < ? < 2?Find cot ?.
A. 
B. - 
C. - 
D. -24
Parametric equations and 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 = 25t2, y = 5t, -? ? t ? ?
A. x = y2; Entire parabola, top to bottom (from
1st quadrant to origin to 4th quadrant)
B. y = x2; Entire parabola, right to left (from
1st quadrant to origin to 2nd quadrant)
C. x = y2; Entire parabola, bottom to top (from
4th quadrant to origin to 1st quadrant)
D. y = x2; Entire parabola, left to right (from
2nd quadrant to origin to 1st quadrant)
Multiply. Write the answer in descending order.-8y(2y2 - 7y - 7)
A. -16y3 + 56y2 + 56 B. -16y3 + 56y2 + 56y C. -16y2 + 56y + 56 D. -16y3 - 7y - 7
Decompose into partial fractions.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 