Below is the linear programming for the Shortest Path Problem. Considering the second contraint in the mathematical model :
∑ixji−∑ixij=0∀j≠s, j≠t
What is the logic behind this contraint?
A. To make sure there is only one solution
B. To make sure that the path is connected between the nodes
C. To make sure the variable stays binary
D. This contraint is redundant and not necessary

n

step-by-step explanation:

answer: finding the extract measurements and knowing the points

step-by-step explanation:

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

is there a picture

step-by-step explanation: