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avatar+420 

find the missing numbers

305,326.5,___,361.5,___...

this is a geometeric sequence

 Aug 31, 2017
 #1
avatar+100529 
+1

 

 

This can't be geometric, DC, because the ratio, r, between terms isn't constant

 

To see this

 

305r = 326.5   →  r  ≈  1.07049

 

But

 

305r^3  = 361.5 → r = 1.05829

 

 

cool cool cool

 Aug 31, 2017
 #2
avatar+420 
+1

oh... so that explains it my notes where wrong

 Aug 31, 2017

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