# math

posted by .

Decide if it's permuatation or combination .
1-how many teams of 4 horses be made if there were 9 horses in total ?
2-mike has nice baseball trophies to arrange on the shelf . How many different ways can be arranged ?
3-in a math class , there are 24 students,the teacher picks 4 students to help do a demonstration.how many diffrent groups of 4 could she have chosen ?

• math -

if order matters, it's permutations
if not, then it's combinations

## Similar Questions

1. ### Math

Ok, so my math teacher didn't tell us ways to do this faster, and it's late enough as it is so I don't want to be up all night doing homework. D; *Note: A permutation is where the order matters. A combination is where it doesn't. Find …
2. ### math

1. There are 13 horses running in a race. In how many different ways can the horses place first, second, or third?
3. ### Math

In a competition, only the top 3 horses receive prizes. How many possible ways can a 1st, 2nd, and 3rd prize be awarded if the competition has 12 horses?
4. ### math

Decide if it's permuatation or combination . 1-how many teams of 4 horses be made if there were 9 horses in total ?
5. ### maths

A & B together have 132 horses. If 0.25 of the no. of A 's horses = 0.14285714285714.... of no. of B 's horses, how many horses each has?
6. ### math help me

Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination?
7. ### math

There are 28 cars registered for a race. The top 5 finishers will be awarded trophies. 1. how many different ways can the trophies be awarded?
8. ### mason

seven horses are entered in a race. If two horses are tied for first​ place, and there are no ties among the other five ​horses, in how many ways can the seven horses cross the finish​ line?
9. ### math

horses are entered in a race. If two horses are tied for first​ place, and there are no ties among the other five ​horses, in how many ways can the seven horses cross the finish​ line?
10. ### math

seven horses are entered in a race. If two horses are tied for first​ place, and there are no ties among the other five ​horses, in how many ways can the seven horses cross the finish​ line?

More Similar Questions