Ask your own question, for FREE!
Mathematics 16 Online
OpenStudy (anonymous):

Find the 7th term of a geometric sequence with t1=5 and r = -2.

OpenStudy (danjs):

geometric \[t _{n}=t _{1}*r^{n-1}\]

OpenStudy (danjs):

They want n=7

OpenStudy (anonymous):

\[a_7=5+(-2)^{7-1}\]

OpenStudy (anonymous):

waddaya got?

OpenStudy (anonymous):

-10^6

OpenStudy (danjs):

not +

OpenStudy (anonymous):

calculate \[(-2)^{7-1}\] first

OpenStudy (anonymous):

then add 5

OpenStudy (anonymous):

-124

OpenStudy (danjs):

geometric

OpenStudy (anonymous):

jk I meant -59

OpenStudy (anonymous):

no

OpenStudy (danjs):

\[a_7=5*(-2)^{7-1}\]

OpenStudy (anonymous):

hint: the answer is my favorite number

OpenStudy (anonymous):

320?

OpenStudy (anonymous):

oops lemme see

OpenStudy (anonymous):

yea

OpenStudy (danjs):

yes

OpenStudy (anonymous):

ahh thanks guys!!!

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!
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!