This algebra lesson explains geometric series<span>. ... To </span>find<span> the sum of the first n terms of a geometric sequence: Sn = the summation of ... 5 , -</span>10<span> , </span>20<span> , -</span>40<span> , 80 , .</span>
Answer:
70.56
Step-by-step explanation:
The variance is the standard deviation squared.
σ² = (8.4)² = 70.56
Answer:
3:11
Step-by-step explanation:
the other ones have 7 in them
Answer:
-4
Step-by-step explanation:
-4 + 11 = 7
try to solve it on a calculator to see for yourself
Answer:
honestly I have no idea
Step-by-step explanation:
1x-3x=2x