This is a combination problem. Order does not matter and the books are all different. You would write this as 21C5 or
. Combinations are not fractions.
The answer is 
which = 20349 different ways these books can be chosen.
9514 1404 393
Answer:
9
Step-by-step explanation:
The prime factorization of 945 is ...
945 = 3³·5·7
suggesting the numbers are 3, 5, 7, 9. These have a sum of 24.
The largest of the integers is 9.
Answer:
dookey boodey
Step-by-step explanation:
Answer: shouldn't it be -11?
Step-by-step explanation:
im p sure to find the AV its just like the positive version of a number. Kinda rusty since i did this a long time ago lol