Solve the problem.Suppose that one box contains n balls, of which 2 are red. A second box contains 
balls, of which n are red. If you select a ball from each box, the probability of drawing a red ball from the first box and a red ball from the second box is 
? 
. Simplify this expression.
A. 
B. 
C. 
D. 
Answer: C
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A delivery truck must deliver packages to 6 different store locations (A, B, C, D, E, and F). The trip must start and end at A. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The cheapest-link tour starting with vertex A is given by:
A. A, E, F, C, B, D, A. B. A, C, D, B, E, F, A. C. A, D, F, E, C, B, A. D. A, B, C, D, E, F, A. E. none of these
Solve the problem.The financial department of a company that manufactures portable MP3 players arrived at the following daily cost equation for manufacturing x MP3 players per day: 
The average cost per unit at a production level of players per day is 
(A) Find the rational function 
.(B) Graph the average cost function on a graphing utility for 10 ? x ? 200. (C) Use the appropriate command on a graphing utility to find the daily production level (to
the nearest integer) at which the average cost per player is a minimum. What is the minimum average cost (to the nearest cent)? What will be an ideal response?
Determine the number that should be added to complete the square of the expression. Then factor the expression.x2 + 12x
A. -6; (x + 6)2 B. 36; (x + 6)2 C. 36; (x - 6)2 D. 6; (x + 6)2
Find the sum.-11 + 13
A. -24 B. 2 C. 24 D. -2