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3 years ago

7

If a1=47 and d=-5 find a12

1 answer:

Simora [160]3 years ago

8 0

An = a1 + (n-1) * d
a12 = 47 + (12 - 1) * -5
a12 = 47 + 11 * -5
a12 = 47 - 55
a12 = - 8 <==

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