3 years ago

The first term of a geometric sequence is 10,000 and the common ratio is 0.4. What

Mathematics

1 answer:

Misha Larkins [42]3 years ago

7 0

$a = 10000$

$r = 0.4 = 4/10 = 2/5$

$a_9 = ar^8 = 10000 × 2^8/5^8$

$a_9 = 10000 × 256/(25 × 25 × 25 × 25)$

$a_9 = 6.5536$

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