cmoolah cmoolah
  • 07-07-2017
  • Mathematics
contestada

What is S5 for 1000 + 500 + 250 + ...

Respuesta :

ghanami
ghanami ghanami
  • 07-07-2017
hello : 
250/500=500/1000=1/2  ..(commmon ratio) of  geoemtric  sequence
the sum is : S= a1(1-r^n)/(1-r)
a1 = 1000   and     n = 5         r = 1/2
S5 = 1000(1-(1/2)^5)(1-1/2)
S5 = calculate ........

Answer Link

Otras preguntas

How would four billion, nineteen million, three hundred thirty-seven thousand, two be written in standard form?
Game have been a part of human life only recently in human history—about 1100 AD. True False
The Populist Party's main base of support was represented by: Southern & Western farmers O Northern industrial workers O Bankers and investors O Immigrants
Which passage is possibly opinion-based? - “The researchers found two possible explanations for these results, and there was evidence for both” (25). - “unless
What was the primary significance of the Triangle Shirtwaist Factory Fire?
The volume of a sphere is decreasing at a constant rate of 23 cubic centimeters per second. At the instant when the volume of the sphere is 7 cubic centimeters,
how to solve the following system y=(1/2)x^2+2x-1 and 3x-y=1
where is it located on the number line
12 is 50% of what? The answer is 24. You start with the highest number, to get the half number, the percentage is asking.
When potential energy is converted into kinetic energy, some of that energy is always in the form of: А. light energy B. chemical energy с nuclear energy D heat