parisfrance896 parisfrance896

11-03-2016
Mathematics

contestada

find the sum of the geometric series -3,15,-75,375 when there are 9 terms and select the correct answer below

Respuesta :

Аноним Аноним

11-03-2016

The sum to nterms:

Sn=a(r^n - 1) / (r-1)

r=15/-3=-5
a=-3

Sn=-3(-5⁹ - 1) / (-5-1)=-976563

Answer; -976563

Answer Link

Otras preguntas

Elijah invested $530 in an account paying an interest rate of 8 % compounded continuously, Cafter invested $530 in an account paying an interest rate of 8% comp

Use the term alliance in a sentence about the French and Indian war ( please don’t give me a link to go to )

FIND THE VALUE OF X.

12,000 ib. =______ T

Complete the following sentences, using the correct form of the verb hurt/Completa las siguientes oraciones, usando la forma correcta del verbo doler

Bronze vessels were used for offerings of food and wine to spirits of ancestors. How was the food prepared? A) It was dried so it would last a long time. B) It

article 2 of the Texas Constitution states "...Those which are Legislative to one; those which are Executive to another, and those which are Judicial to another

help me with this problem please

Which food is from the protein group? Banana Eggs Potato Butter

If brown bread was described as "food for left wing people", what made it become mainstream in the supermarket ecosystem?