britneywilson2004 britneywilson2004

23-10-2020
Mathematics

contestada

finish the pattern
–5, 15, –45, 135, –405, ,

Respuesta :

jojododo11111 jojododo11111

23-10-2020

Answer:

Common ratio is

3

Explanation:

Sequence :

5

,

15

,

45

,

135

,

...

...

.

a

1

=

5

,

a

2

=

15

,

a

3

=

45

,

a

4

=

135

,

...

...

.

a

2

a

1

=

15

5

=

3

,

a

3

a

2

=

45

15

=

3

,

a

4

a

3

=

135

45

=

3

,

...

.

.

In this sequence the ratio of each term and the previous term is

constant , so it is geometric sequnce and constant is

3

.

Common ratio is

3

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