crispablo10 crispablo10

26-02-2021
Mathematics

contestada

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

Respuesta :

27-02-2021

Answer:

Step-by-step explanation:

common ratio=18/-3=-108/18=-6, a=-3

sn=a(r^n-1)(r-1)

sn=-3((-6)^n-1)(-6-1)

sn=-3(-6)^8-1)/(-7)

s8=-3(1679615)/(-7)

s8=719836

Answer Link

Otras preguntas

How are intracellular cues and particularly the par-polarity complex involved in axon formation in hippocampal neurons? What is the evidence?a. Intracellular cu

Why do we show PIK interest in the Cash Flow from Operations section? Isn't it a financing activity? a) Because PIK interest is considered a cash expense relate

Sensitivity analysis of the Base-Case Financial Model is a useful tool for which of the following reasons? a) Identifying key assumptions' impact on outcomes b)

Why is it important to provide the charge nurse Angela with the appropriate amount of information? A) To ensure seamless coordination of patient care and effici

What do the actions and fates of characters imply in Hawthorne's writings? a) They imply a belief in determinism b) They imply a belief in free will c) They imp

Sample Range Sample Mean data point Xbar-R Chart of Shift 1, Shift 3 by Day ID Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

According to Power Elite Theory what do those that assert the pluralist conception of power minimize or ignore?a. The lack of trust in the government most voter

Known especially for polish and swing feeling was the big band of:A) Benny GoodmanB) Duke EllingtonC) Count BasieD) Glenn Miller

Florida's workforce_______act of 2000 implemented the federal WIA act of 1998, bringing workforce programs together into one system

According to "Life and Death in Assisted Living," an ethical issue in Emeritus Assisted Living that resulted in harm to residents was: a) Overmedication of resi