Ask
your own question, for FREE!
Mathematics
14 Online
OpenStudy (anonymous):
Help please??? Find S15 for the series 1 + 1.5 + 2.25 + 3.375 +...
Still Need Help?
Join the QuestionCove community and study together with friends!
jimthompson5910 (jim_thompson5910):
first term: a = 1 common ratio: r = 1.5 plug this into \[\Large S = \frac{a*(1-r^n)}{1-r}\] n = 15 for the 15 terms you sum up
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
Twaylor:
how to make good breakfast food ingredients : 1 mother flat bread bananas peanut
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
Twaylor:
how to make good breakfast food ingredients : 1 mother flat bread bananas peanut
20 minutes ago
0 Replies
0 Medals
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
25 minutes ago
1 Reply
0 Medals
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
22 hours ago
5 Replies
0 Medals
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
2 days ago
4 Replies
0 Medals
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
2 days ago
6 Replies
2 Medals
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
3 days ago
11 Replies
3 Medals
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
3 days ago
7 Replies
2 Medals