Question
How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet? (1 point)
6,840
3,420
1,140
2,280
15. You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point)
a.6 ways
b.12 ways
c.24 ways
d.10 ways
16. You own 5 pairs of jeans and want to take 2 of them on vacation. In how many ways can you choose 2 pairs of jeans? (1 point)
a.10 ways
b.15 ways
c.4 ways
d.20 ways
6,840
3,420
1,140
2,280
15. You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point)
a.6 ways
b.12 ways
c.24 ways
d.10 ways
16. You own 5 pairs of jeans and want to take 2 of them on vacation. In how many ways can you choose 2 pairs of jeans? (1 point)
a.10 ways
b.15 ways
c.4 ways
d.20 ways
Answers
Anonymous
i think the answers are
b
c
d
b
c
d
Reiny
1st one:
choose 3 from 20
= C(20,3) = 1140
15.
Assigned seats ---> order matters, so permution of 4
= 4x3x2x1 = 24
(you were right)
16.
choose 2 from 5
= C(5,2) = 10
(the order you select your jeans does not matter)
choose 3 from 20
= C(20,3) = 1140
15.
Assigned seats ---> order matters, so permution of 4
= 4x3x2x1 = 24
(you were right)
16.
choose 2 from 5
= C(5,2) = 10
(the order you select your jeans does not matter)
Vhahangwele
My answer is A
Grace
My question was: "How many students can be chosen from a class of 16 to represent their class at a banquet?"
If you could give me the answer, I'd be thankful.
If you could give me the answer, I'd be thankful.
Uh
Wrong wrong and somewhat wrong!
man
nothing
ur mom
someone help plssssssss , “how many ways can 3 students be chosen from a class of 20 to represent their class at banquet?