math
posted by jane .
Decide if it's permuatation or combination .
1how many teams of 4 horses be made if there were 9 horses in total ?
2mike has nice baseball trophies to arrange on the shelf . How many different ways can be arranged ?
3in 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 ?

1. We can't tell from the question. If the position of a particular horse in the team is important, then it is a permutation. If you just care about groups of 4 horses, then you have a combination. I think the placement of a horse should be important
2. combination
3. combination, unless members of the group have specific tasks in the demonstration.
1. Permutation: 9x8x7x6 = P(9,4) = 3024
combination : C(9,4) = 126
2. 9!
3. C(24,4) = 10626
Respond to this Question
Similar Questions

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 … 
math
1. There are 13 horses running in a race. In how many different ways can the horses place first, second, or third? 
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? 
math
Decide if it's permuatation or combination . 1how many teams of 4 horses be made if there were 9 horses in total ? 
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? 
math help me
Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination? 
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? 
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? 
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? 
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?