inequalities for {15, 16, 17, 21}

Answer 1

To express the inequalities for the set {15, 16, 17, 21}, we need to compare each element of the set with the others. Here are all the inequalities expressing the relationships between these numbers:

1. 15 < 16
2. 15 < 17
3. 15 < 21
4. 16 < 17
5. 16 < 21
6. 17 < 21

To express these inequalities as a range, we can write:
15 < 16 < 17 < 21

This indicates that 15 is the smallest number in the set and 21 is the largest, with 16 and 17 falling in between in ascending order.