valentina733 valentina733
  • 03-08-2022
  • Mathematics
contestada

What is the sum of the geometric sequence -3, 18, -108,
if there are 8 terms?

Respuesta :

bunnuika
bunnuika bunnuika
  • 03-08-2022

Step-by-step explanation:

using gp formula

tn=ar^n-1

which our a which is the first term is = -3

our r which is t2/t1=-6

t8=(-3)(-6)^8-1

=(-3)(-6)^7

=(-3)(-279936)

=839808

Answer Link

Otras preguntas

Which value is a solution to x < ​
After taking several assessments and being told that all signs indicate he is perfect in every way for a career as a high school teacher, Mike becomes a high sc
Sam’s teacher asked him to make observations about animals at the zoo. sam went to the zoo and filled in these two charts that the teacher gave him. what is the
Filipino po ito hehe​
Victor+earns+a+gross+annual+income+of+$84,482+and+is+buying+a+home+for+$185,500. +he+is+making+a+15%+down+payment+and+financing+the+rest+with+a+25-year+loan+at+
The expression 8x2 − 144x 864 is used to approximate a small town's population in thousands from 1998 to 2018, where x represents the number of years since 1998
Element X decays radioactively with a half life of 7 minutes. If there are 980 grams of Element X, how long, to the nearest tenth of a minute, would it take the
Find the critical t-value that corresponds to % confidence. Assume degrees of freedom
What are the examples of physical chemistry?
What makes a good political candidate you would be willing to vote for?