What is the rule for the following geometric sequence? 64, 128,256, 512...?

Correct  aₙ = a₁ · 2ⁿ⁻¹

Step-by-step explanation:

Given: Geometric sequence

64, 128, 256, 512,

First term a₁ = 64

Second term a₂ = a₁ · 2 = 128

Third term a₃ = a₂ · 2 = a₁ · 2² = 256

Fourth term a₄ = a₃ · 2 = a₁ · 2³ = 512

n - th term  aₙ = a₁ · 2ⁿ⁻¹

God is with you!!!

828. all there is to it!

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thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

answer: 48

just remember to use pemdas:

parentheses

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