Answer:
9pi
Step-by-step explanation:
circumference is 2(pi)(r) or diameter(pi)
The probabilities of all possible outcomes in a distribution must sum to 1.

Answer:
I honestly have no clue.
Step-by-step explanation:
I honestly have no clue.
These are the elements of the matrix
Elements of the first row are h11 h12 h13, of the second row h21 h22 h23.
Than we can conclude that element h23 worth 75.
Good luck!!!