Question 426920: 1) How do I write down the 6th term of the sequence in which Tn=4n-7?
2) Is -356 a member of the sequence Tn=4-5n?
Hello, I am having trouble with these two problems on series and sequences. Thank you for your assistance. :)
Answer by www.mathmartian.com(5)   (Show Source):
You can put this solution on YOUR website! In order to find the 6th term of the sequence, you must replace the n with 6 and solve.
Tn=4(6)-7
Tn=24-7
Tn=17
So the answer is 17.
In order to find out if -356 is a member of the sequence Tn=4-5n, substitute Tn with -356 and solve for n. If n is a whole number, then the answer is yes. If it not a whole number, then the answer is no.
-356=4-5n
-4 -4
-360=-5n
/-5 /-5
72=n
So the answer is yes, -356 is a member of the sequence.
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