Mathematics, 20.01.2020 07:31 homework1911

Ialso bought $7$ different postcards. how many ways can i send the postcards to my $3$ friends, so that each friend gets at least one postcard?

how do i count the restriction that each friend must get at least 1 or more postcards and the postcards are distinguishable?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:30, jadajones5313

1. what is the measure of ∠abc? what is the measure of ∠abd?

Answers: 1

continue

Mathematics, 21.06.2019 15:40, chaparro0512

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Answers: 3

continue

Mathematics, 21.06.2019 19:30, angie249

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Answers: 2

continue

Mathematics, 21.06.2019 21:00, JamlessJimin

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Answers: 1

continue

You know the right answer?

Ialso bought $7$ different postcards. how many ways can i send the postcards to my $3$ friends, so t...