Answer:
There can be 14,040,000 different passwords
Step-by-step explanation:
Number of permutations to order 3 letters and 2 numbers (total 5)
(AAANN, AANNA,AANAN,...)
= 5! / (3! 2!)
= 120 / (6*2)
= 10
For each permutation, the three distinct (English) letters can be arranged in
26!/(26-3)! = 26!/23! = 26*25*24 = 15600 ways
For each permutation, the two distinct digits can be arranged in
10!/(10-2)! = 10!/8! = 10*9 = 90 ways.
So the total number of distinct passwords is the product of all three permutations,
N = 10 * 15600 * 90 = 14,040,000
Answer:
7 groups, 3 boys and 8 girls
Step-by-step explanation:
Let total number of groups be
and total hikers in one group be
if number of girls and boys in every group is same, then
....(1)
from (1) will either be 11 or 7
for the values won't be real.
For
so there will be 7 groups with 11 hikers in each groups and every group will have boys and girls
Answer:
(-6,-9)
Step-by-step explanation:
Answer: 12
Step-by-step explanation:
since it’s isosceles, the bottom two angles are equal so just subtract 156 from 180 and then divide that by 2.