3 years ago

Write a rule for the nth term of the arithmetic sequence 3, 11, 19, 27, 35... what is a20?

1 answer:

5 0

3, 11, 19, 27, 35...

a = 3
d = 11-3 = 8
a20 = a + 19d = 3 + 19*8 = 3 + 132 = 135

HOPE IT HELPS!

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