mizuky1 mizuky1

25-05-2016
Mathematics

Answered

OK I need help the answer is c but I didn't understand the teacher explanation pls help me

OK I need help the answer is c but I didn t understand the teacher explanation pls help me class=

Verified Answer :

padawan padawan

26-05-2016

9 - 6 + 4 - 8/3 ..,

geometric series a(n) = a1r^(n-1)

r = a(n+1)/a(n)

-6/9 = -2/3

4/-6 = -2/3

-8/3/4 = -2/3

so r = -2/3 and a1 = 9

Sn = a1(1-r^n)/(1-r) = 9(1-(-2/3)^n)/(1-(-2/3))

n is infinite Sn = 9/(5/3) = 27/5

Answer Link

Related Questions

Hitlers power in Europe was seriously checked when the United States entered the war TRUE User who led the Communist forces in Indochina and in North Vietnam

Whats positive energy balance

The core or foundation of a words meaning is the a suffix b root c combining form d prefix

what is 5 divided by 8605

Which answer best explains why ATP is regarded as a renewable resource within the cell ADP can be used to regenerate ATP ADP is fueled by photosynthesis and sun

The revolution in Eastern Europe was spurred by economic troubles and the reform policies of

Whats answer to 8x40

a What is the exact surface area of the container with a radius of 9 in and a height of 36 in

Some goods can be produced more efficiently by larger companies Such a situation is called a a partnership b economy of scale c a trust d free enterprise