Identify the series as geometric or arithmetic. 2, 4/3, 8/9, 16/27

1 answer:

8 0

Hello,

$\dfrac{\frac{4}{3}}{2}=\dfrac{4}{6}=\dfrac{2}{3}$

$\dfrac{\frac{8}{9}}{\frac{4}{3}}=\dfrac{8*3}{9*4}=\dfrac{2}{3}$

$\dfrac{\frac{16}{27}}{\frac{8}{9}}=\dfrac{16*9}{27*8}=\dfrac{2}{3}$

The sequence is geometric .
(a serie is a sum)

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Answer:

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Step-by-step explanation:

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We put the addition and subtraction in parentheses because of PEMDAS. PEMDAS say we must solve for whatever is in the parentheses first, then exponents (there are none in the expression), ans then multiplication. If those numbers were not in parentheses, the answer would look completely different as we would multiply before subtracting and adding. We must find the total amount each ball cost first:

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