The sum of the first 6 terms of a geometric series is 15,624 and the common ratio is 5.
1 answer:
Answer:
4
Step-by-step explanation:
The sum of n terms of a geometric series with first term a1 and common ratio r is given by ...
Sn = a1·(r^n -1)/(r -1)
for r=5 and n=6, this becomes ...
15624 = a1·(5^6 -1)/(5 -1) = a1·(15624/4)
Then we have ...
1 = a1/4 . . . . . divide by 15624
4 = a1 . . . . . . multiply by 4
The first term of the series is 4.
You might be interested in
Answer:
0.03734439834
Step-by-step explanation:
Answer:
IRREGULAR TERM OF FRACTIONS
Step-by-step explanation:
2 1/3
= 7/3 ANSWER
Answer:
D.
(The only option that makes sense is D. but I came up with 10°F when I did the math)
<u><em>~ LadyBrain</em></u>
Answer:
y>2
Step-by-step explanation:
-4-3y>-10
-3y>-10+4
-3y>-6
y>-6/-3
y>2
It would just be 14-10 each week so 14-10 14-10 14-10 and so on