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natalia is writing a recursive formula to represent the sequence. 8, 12, 18, 27, ... what value should she use as the common ratio in the formula? write the answer as a decimal rounded to the tenths place.
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Jun 18, 2017
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natalia is writing a recursive formula to represent the sequence. 8, 12, 18, 27, ... what value should she use as the common ratio in the formula? write the answer as a decimal rounded to the tenths place.
Mathematics
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This is a geometric sequence:
a = 8, a2 = 12, a3 = 18, a4 = 27,...
12 = r · 8 ⇒ r = 12 : 8 = 1.5
r = 1.5
. We can justify it:
18 = 8 · 1.5² = 8 · 2.25 ( true )
27 = 8 · 1.5³ = 8 · 3.375 ( true )
YOMorales
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Jun 20, 2017
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Answer:
c. 3/2
Explanation:
Tiago Moutinho
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Jun 25, 2017
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