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avatar+1202 

Find the 7th term for the sequence with the given formula.


tn= n^2 – 3


A. 11


B. 4


C. 39


D. 46

 

 

 

Find the 8th term for the sequence with the given formula.


tn= 3 + 7n


A. 10


B. 59


C. 31


D. 168

 

 

 

Which of the following sequences is an arithmetic sequence?


A. 1, 4, 16, 64, ...


B. 75, 70, 65, 60, ...


C. 1600, 400, 100, 25, ...


D. 6, 12, 24, 48, ...

 Oct 23, 2019
 #1
avatar+104969 
+2

First one

 

Evaluate  (7)^2  - 3

 

 

Second one

 

Evaluate  3 + 7(8)

 

Last one......an arithmetic sequence always has the same difference between successive terms

 

That is

 

(term two  - term one)  =  ( term three - term two) = ( term four - term three) ......etc....

 

Which one of these fit the bill ???

 

 

cool cool cool

 Oct 23, 2019
 #2
avatar+1202 
+1

i believe it is B

macabresubwoofer  Oct 23, 2019
edited by macabresubwoofer  Oct 23, 2019
 #3
avatar+104969 
+1

Correct    !!!!

 

 

cool cool cool

CPhill  Oct 23, 2019

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