Ask
your own question, for FREE!
Mathematics
21 Online
OpenStudy (anonymous):
Which is the 25th term of the arithmetic sequence where a1 = 8 and a9 = 80 ?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
224
OpenStudy (anonymous):
a = 8 a + 8d = 80 8 + 8d = 80 d = 9 a + 25d = 8 + 25(9) = 233
OpenStudy (anonymous):
@moneybird 25th term will be "a+24d" i think
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
25th term is 224
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (lilg132):
oops
OpenStudy (lilg132):
a + 24d = 8 + 24(9) = 8 + 216 = 224 is the 25th term
OpenStudy (anonymous):
medal medal
OpenStudy (anonymous):
224
OpenStudy (ash2326):
a9=a1+(9-1)D a1=FIRST TERM D=common difference 80=8+8*D D=9 a25=a1+(25-1)D a25=8+24*9 a25=224
Still Need Help?
Join the QuestionCove community and study together with friends!
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
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.
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
10 minutes ago
0 Replies
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
3 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
1 day 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.
1 day 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.
2 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
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
2 days ago
4 Replies
1 Medal