Ask
your own question, for FREE!
Mathematics
22 Online
OpenStudy (anonymous):
Find the number of permutations of the first 10 letters of the alphabet taking 2 letters at a time. 90 120 160 45 I don't understand this
Still Need Help?
Join the QuestionCove community and study together with friends!
ganeshie8 (ganeshie8):
How many two letter strings(words) can you make using 10 different letters ?
OpenStudy (anonymous):
uhh.
OpenStudy (anonymous):
like 10p2?
ganeshie8 (ganeshie8):
Exactly !
ganeshie8 (ganeshie8):
|dw:1405044729328:dw|
Still Need Help?
Join the QuestionCove community and study together with friends!
ganeshie8 (ganeshie8):
we can choose any one of the 10 letters for first space : 10 ways
ganeshie8 (ganeshie8):
|dw:1405044782271:dw|
OpenStudy (anonymous):
okay hold on
ganeshie8 (ganeshie8):
after that, we can choose any one of the remaining 9 letters for the second space : 9 ways
ganeshie8 (ganeshie8):
|dw:1405044826551:dw|
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
kippppp:
does anyone have any good tips for writing stories? i'm trying to write a dnd campaign but i'm not that great of a writer yet.
GRIZZLEY19:
Y'all let me know what y'all think about this beat I made I took me like a hour maybe rate it 0/10 https://drive.
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
kippppp:
does anyone have any good tips for writing stories? i'm trying to write a dnd campaign but i'm not that great of a writer yet.
19 minutes ago
5 Replies
0 Medals
GRIZZLEY19:
Y'all let me know what y'all think about this beat I made I took me like a hour maybe rate it 0/10 https://drive.
13 hours ago
0 Replies
0 Medals
Ultrilliam:
Welcome to the 10th Anniversary Update! (Part 2) Sorry this one passed the date a
3 hours ago
13 Replies
4 Medals
Twaylor:
was walking downtown and my adhd brain wanted to make some (rock?) lyrics: There'
18 minutes ago
5 Replies
0 Medals
AndreW2002:
There is an error when sending GIFs, is this known or is this a level requirement
1 day ago
10 Replies
0 Medals
serenitystXrgazer:
Getting sent to anti gay christian covestion camp in a few weeks, any tips. guys i think im cooked.
8 minutes ago
10 Replies
1 Medal
Aubree:
Guys, what does love feel like? I've been getting a tight chest and when I talk to him my heart rate hangs out around 100-120 beats per min, and when he doe
1 day ago
10 Replies
2 Medals
thereneelg:
ok... anyone have advice?? ...I did Choir all throughout Middle school and have ALWAYS been put in Soprano those three years.
3 days ago
6 Replies
1 Medal
kamariana:
The Byzantine Procopius is known for (5 points) reconquering much of the old Roma
5 days ago
0 Replies
0 Medals
chuckD:
hellp!!! what does it mean to describe a scientist as skeptical Why is sceptical
4 days ago
2 Replies
1 Medal