The rational function f(x) = 
models the cost, f(x), in dollars, to produce x bobble-head figures. The graph is show. Use the equation to solve the problem. 
What is the horizontal asymptote of the graph? What does this mean about the cost to produce x bobble-heads?
A. y = 0; As the number of bobble-head figures produced increases, the cost is approaching $0
B. y = 5; As the number of bobble-head figures produced increases, the cost is approaching $5.
C. There is no horizontal asymptote.
D. y = 400; As the number of bobble-head figures produced increases, the cost is approaching $400.
Answer: B
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (9t - 3t3)i + 3tan(3t)j + e5tk
A. a
= 
?i + 108j + 25e5/12?k
B. a
= - 
?i - 108j + 25k
C. a
= - 
?i + 108j + 25e5/12?k
D. a
= - 
?i - 108j + 25e5/12?k
Use properties of fractions to simplify the expressions. The word per means division and may be replaced by a fraction bar. Round your answer to two decimal places.
A) 0.16 page/min
B) 0.16 min/page
C) 0.21 min/page
D) 6.15 min
E) 0.21 page/min
Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(-8, -5) and (8, -15); (9, -10) and (1, -15)
A. perpendicular B. parallel C. neither
Graph the equation.x2 + y2 + 4x + 8y + 16 = 0
A. 
B. 