lilDot88
lilDot88
28-06-2016
Mathematics
contestada
12
∑ 20(0.5)^n-1
n=3
Respuesta :
nobillionaireNobley
nobillionaireNobley
30-06-2016
Assuming n starts from 1.
∑[tex]20 (0.5)^{n-1}[/tex]; n = 1 to 3
[tex]=20 (0.5)^{1-1}+20 (0.5)^{2-1}+20 (0.5)^{3-1} \\ =20 (0.5)^{0}+20 (0.5)^{1}+20 (0.5)^{2} \\ =20(1)+20(0.5)+20(0.25) \\ =20+10+5 \\ =35[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 93+ )
Otras preguntas
the sum of three positive integers is 20 if the smaller 2 integers differ by 5 ,what is the smallest possible value of the larger integer?
When using latitude and longitude to find a location on Earth, ____________________________ is always shown first in the coordinates.
You want to buy a $200,000 home. You plan to pay 10% as a down payment and take out a 30 year loan for the rest. A. How much is the loan amount going to be? B.
What evidence illustrates that Augustus wanted to maintain the army’s loyalty
59° (3x + 4)º A) 7 C) 9 B) 6 D 5
What should care providers consider when developing menus?
When a plant is entering the Calvin cycle of photosynthesis______.
Based on the song “Twelfth Song of Thunder,” what might a member of the Navajo nation find beautiful? a car a house a ring a sunset
Nice plants filled the hotel lobby.Which word choice is best to add more precision to the sentence?-green plants-many plants-leafy plants-spider plants
6. What was the Northern states argument for slaves NOT counting towards population?|
