We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
-1
225
1
avatar+4116 

Help#1

 Mar 12, 2018
 #1
avatar+101746 
+1

1.  No...in a geometric series.the ratio between the successive term to the previous term must be constant ....note that

 

-4 / 2   =   -2

But

-16 / - 4  =  4    so....not geometric

 

2. Fifth term  

The common ratio  is  36/120  =  3/10

So....the fifth term is

 

First Term * (Common Ratio)n-1   =

 

120 (3/10)5-1  =

 

120 (3/10)4   = 

 

 0.972

 

 

cool cool cool

 Mar 12, 2018

13 Online Users

avatar
avatar
avatar