Psychological fact: people with bad handwriting tend to be smarter

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.

What is coefficient of the term of degree of degree 5 in the polynomial below

Which expression gives you the distance between the points (5,1)and(9,-6)