1.

Find the 53th term of the arithmetic sequence 27,11,-5

Answer»

ANSWER:

a = 2

d = 7-2 = 5

n =53

a53 = a +(n-1) d

a53 = 2+(53-1)5

a53 = 2+52×5

a53 = 2+260

a53= 262



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