A tree diagram? I don't think so. Probably it would take a year's supply of paper to record all the possibilities. The question really is do you allow duplications and is 0 allowed to be the first digit.

I would think that both are fine.

So the total number for this number would be 10^9. There probably some sort of algorithm to reduce the number and to check if it is a legitimate choice for this number.

3 0

2 years ago

Factor this expression.

Sindrei [870]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

a bird 7 ft in the air flies down to the ground what integer would you use to represent the change in the bird's position

Cerrena [4.2K]

ANSWER(S):

-7

EXPLANATION(S):

original position: 7
change from original position: -7