2 years ago

Find the 9th term of the geometric sequence 2, -10 50 -250

Mathematics

1 answer:

tigry1 [53]2 years ago

7 0

Answer:

781250

Step-by-step explanation:

We first need to find the common ratio

-10 /2 = -5

50 / -10 = -5

The common ratio is -5

an = a (r) ^ (n-1)

a9 = 2 ( -5) ^(9-1)

= 2 (-5)^8

=781250

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