+0  
 
0
174
1
avatar

The seventh and tenth terms of a geometric sequence are 7 and 21, respectively. What is the 8th term of this progression?

 Sep 8, 2021
 #1
avatar+36430 
+1

From the 7th to the 10th terms is multiplication by r   three times

7 * r * r * r = 21    solve for 'r'

      then the 8th term is  7 * r

 Sep 8, 2021

10 Online Users

avatar