3 years ago

Question

Mathematics

1 answer:

Grace [21]3 years ago

7 0

Answer:

Step-by-step explanation:

plz brainlest

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Find the common ratio for the geometric sequence for which a1=3 and a5=48

Rama09 [41]

The ratio is common, so you could write:

a1 * r^4 = a^5 (you do r^4 because there are 4 times you need to multiply by the ratio to get from a1 to a5)

Plug in the values:

3 * r^4 = 48

Divide by 3:

r^4 = 16

Take the fourth root of both sides:

r = 2

The common ratio is 2.

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3 years ago

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