Find the sum of the sequelle
Σ (k3 - 6)
k= 1
3
Σ (3-6) =

Step-by-step explanation:

Given

Required

Evaluate

This means that we substitute 1 to 3 for k.

So, we have:

sorry i dont know my friend

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers