Question

Find the common ratio of the sequence.

–164, –82, –41, –20.5, . . .

82
–82
1/2
2

Answer 1

Hello @helpwithmathplzz ! Welcome to Openstudy!

Do find the common ratio, take second number and divide it by the first number. Then take the third number and divide it by the second number to make sure. What you get both times is the answer.

Answer 2

To* not do

Answer 3

@BloomLocke367

Answer 4

Divide one number by the one that goes before it.

-82/-164 = ?

Answer 5

0.5

Answer 6

OHHHH it 1/2 right?

Answer 7

yep that's right
formula to find common ratio is \[\huge\rm r=\frac{ a_2 }{ a_1 }\]
or \[\huge\rm r = \frac{ a_4 }{ a_3 }\]
a_2 2nd term
a_1 first term
so divide next term by previous one
so 1/2 is right :)