Rashawnsf Rashawnsf
  • 22-12-2018
  • Mathematics
contestada

Find the sum of the geometrical equation -3 , 18 , -108 , if there are 7 terms

Respuesta :

lily07182008
lily07182008 lily07182008
  • 22-12-2018
Answer:

S7=−39991

Explanation:

In this sequence we have: a1=−1, q=−6, n=7. If we apply the formula for Sn we get:

S7=(−1)⋅1−(−6)71−(−6)

S7=(−1)⋅1+2799367

S7=−39991

hope it helps plz mark as brainliest
Answer Link

Otras preguntas

Whoever read the Giver can u answer the close reading questions. This is worth 19 Point
What Happens when a ATP loses a phosphate group
When do tornadoes form??
The comparative form of adjectives compares ??
Which statement is true about ancient Chinese, Minoan, and Anasazi pottery? A. Artists made it by pouring liquid clay into molds. B. It was decora
divide. write in smplest form 5/12÷5/6
What civilization built cities at Harappa and Mohenjo-daro and built a sanitation system? Indus Valley Egypt Mesopotamia China
in 20 minutes, I ate 1 1/2 sub sandwiches. <br /><br />A. what is my rate in sandwiches per hour?<br /><br />B. what is my rate in hou
what is congressional reapportionment?
carmela cut a cake into 12 equal-sized pieces. She ate 2/12 of the cake and her brother ate 3/12 of the cake.What fraction of the cake is left?