What is the difference between 49 8/9 and 17 1/3

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

How can constraints be used to model a real-world situation?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n