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apologiabiology

0.45 times what=0.90?
seems to be 2
for
\(a_n\) and \(a_{n+1}\), (1 term and the next)
common ratio=\(\frac{a_n}{a_{n+1}}\)
0.45 and 0.9
0.9/0.45=2
common ratio is 2

Answer:

the common ratio is, 2

Step-by-step explanation:

Common ratio for geometric sequences states that the ratio of a term to the previous term.

It is represented by r

Given the sequence:

0.45, 0.9, 1.8, ...

This is a geometric sequence with first term 0.45

Common ration(r) = 2

Since;

\(\frac{0.9}{0.45} = 2\),

\(\frac{1.8}{0.9} = 2\) and so on

therefore, the common ratio is, 2

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