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Identify the 12th term of a geometric sequence where a1 = 8 and a6 = –8,192.
 one year ago
 one year ago
Identify the 12th term of a geometric sequence where a1 = 8 and a6 = –8,192.
 one year ago
 one year ago

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amistre64Best ResponseYou've already chosen the best response.0
since youve gone thru this with alot of people already ... what is the general equation for an arith. progression ?
 one year ago

tmauldinBest ResponseYou've already chosen the best response.2
an= ar1 * r^(n1) this is the geometric equation
 one year ago

amistre64Best ResponseYou've already chosen the best response.0
lol ... its just too easy to read over that word :) yes, this is a geo ... good eye
 one year ago

tmauldinBest ResponseYou've already chosen the best response.2
this is how i found it, give me a moment i will explain
 one year ago

tmauldinBest ResponseYou've already chosen the best response.2
since the formula for any term is given by an= a1 *r^(n1) in order to find any term you must know a1 and r you have a1 but we need to find r, in order to find r we need an and a1 we only have a1 and a6 so substitute a6 for an in the above formula a6=8*r ^(61) 8192=8 * r ^(5) 1024=r^5 4=r now using above formula again we have a12=8 * (4)^(121) a12=8 * (4)^11 a12=8 * (4194304) a12=33554432 hint* any time a term is negative, the ratio will be negative
 one year ago

tmauldinBest ResponseYou've already chosen the best response.2
formula for finding any term in ageometric sequence an=a1*r^(n1) i have never worked a related problem, so that is why it took so long, but now we both know amistre64 helped me realize you needed a12 good day
 one year ago

tmauldinBest ResponseYou've already chosen the best response.2
geometric equation a.k.a arithmetic transformation
 one year ago
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