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stich3 [128]
3 years ago
13

Given the arithmetic sequence, what is a18? 18,14,10 A18=

Mathematics
2 answers:
malfutka [58]3 years ago
5 0
The first term is a1 = 18
The common difference is d=-4

And the nth term of an arithmetic sequence is given by
an = a1 + (n-1)d

Plugging in what we know:

an = 18 + (n-1)(-4)

So find the 18th term of this arithmetic sequence,
replace n with 18,

a18 = 18 + (18-1)(-4)

and simplify.
Artyom0805 [142]3 years ago
4 0
18 is the starting term and the common difference is -4
Hope it helped!!!
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