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!!!

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

the answer will be b x² +x-1

step-by-step explanation: