Respuesta :

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

[tex]\frac{0.9}{0.45} = 2[/tex],

[tex]\frac{1.8}{0.9} = 2[/tex] and so on

therefore, the common ratio is, 2

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