what is the sum of a 7-term geometric series if the first term is negative 11 the last turn is -45056 and the common ratio is -4
1 answer:
For a geometric sequence with common ratio

, we have

that is, the

-th term in the sequence is the product of the previous term and the common ratio

. So

Then the sum of the first 7 terms is


Notice that

so we can subtract this modified sum from

to get

We're told that

and

, so the sum of the first 7 terms is
You might be interested in
7 men= 5 women
380 men= x women
=> 7x = 5 . 380
7x = 1900
x= 1900/7
x= 271,4
wich means 271 women
HOPE IT HELPS
I think the answer is 26.53
Uhh thats a test...... a or b
The sale price is $30.52
:)
Answer:
i think the answer is somethingbis abut to come down.
Step-by-step explanation: