Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

please help (multiple choice)

HanAkoSolo (jamierox4ev3r):

i believe this is not even arithmetic

HanAkoSolo (jamierox4ev3r):

well…because if you add 1/6 each time… no, this must be geometric

OpenStudy (anonymous):

Yes, you add 1/6 to each preceding term. Hence, 1/6 is the common difference.

OpenStudy (anonymous):

@Jamierox4ev3r I don't mean to correct you but, it is an arithmetic sequence because an arithmetic sequence goes from one term to the next by always adding (or subtracting) the same value. For instance, 2, 5, 8, 11, 14,... and 7, 3, –1, –5,... are arithmetic, since you add 3 and subtract 4, respectively, at each step. A geometric sequence goes from one term to the next by always multiplying (or dividing) by the same value. So 1, 2, 4, 8, 16,... and 81, 27, 9, 3, 1, 1/3,... are geometric, since you multiply by 2 and divide by 3, respectively, at each step.

HanAkoSolo (jamierox4ev3r):

but…it turns into 1 1/3 and then 1 1/2

HanAkoSolo (jamierox4ev3r):

hmmm its been a while since I've done these >.< god dang it memory of mine, WORK!

HanAkoSolo (jamierox4ev3r):

oh wait… *facepalm*

HanAkoSolo (jamierox4ev3r):

what was i thinking? yeah i knew that B is correct

HanAkoSolo (jamierox4ev3r):

for some reason, i thought multiplication was happening so i thought it was geometric

OpenStudy (anonymous):

B is correct and 1 1/3 + 1/6 = 1 1/2

HanAkoSolo (jamierox4ev3r):

the error of my thinking could possibly be my folly/hamartia. I am an imperfect human being :P

OpenStudy (anonymous):

It would not be an arithmetic progression: 1, 1(1/6), 1(1/3), 1(1/2) Add 1/6 to the first to get the second, you add 1/6 again to get the third because 2/6 simplifies to 1/3. You then add 1/6 to 2/6 to get 3/6 which simplifies to 1/2. Therefore it's an AP

OpenStudy (anonymous):

Sorry, would :P

OpenStudy (anonymous):

I did what Jamierox did at first

HanAkoSolo (jamierox4ev3r):

lol my mistakes are infectious

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!