Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by C(x) = 
,what do 800 units cost?
A. $1411.76
B. $1499.94
C. $359.93
D. $1500.68
Answer: A
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Find the series' radius of convergence.
A. ?, for all x B. 4 C. 0 D. 2
Solve the problem.Consider the pair of differential equations that model a predator-prey system with populations x and y. x'(t) = -5x + xy y'(t) = 3y - xy(a) Find the lines along which x'(t) = 0,(b) find the lines along which y'(t) = 0,(c) find the equilibrium points for the system.
A. (a) x' = 0 along the lines x = 5 and y = 0
(b) y' = 0 along the lines y = 3 and x = 0
(c) (0, 0) and (5, 3)
B. (a) x' = 0 along the lines x = 0 and y = 
(b) y' = 0 along the lines y = 0 and x = 
(c) (0, 0) and 
C. (a) x' = 0 along the lines x = 0 and y = 5
(b) y' = 0 along the lines y = 0 and x = 3
(c) (0, 0) and (3, 5)
D. (a) x' = 0 along the lines x = 
and y = 0
(b) y' = 0 along the lines y = 
and x = 0
(c) (0, 0) and 
Is the following correspondence a function?
A. Yes B. No
Determine if the pair of line segments or angles is congruent.Determine if the pair of segments is congruent. Use a ruler. 
A. Yes B. No