Z = 13/x
sub Z inside YZ = 4
Y(13/x) = 4
13Y * YX = 4
YX = 4/13Y
Answer:
Radius of the convergence is R = 
and,
The Interval of convergence is 
Step-by-step explanation:
Given function : Σ(21x)^k
Now,
Using the ratio test, we have
R = 
or
R = 
or
R = 
now,
for convergence R|x| < 1
Therefore,
< 1
or

and,
Radius of the convergence is R = 
and,
The Interval of convergence is 
Answer:

Step-by-step explanation:

Answer:
6/25
Step-by-step explanation:
I turned all of it to decimals and percentages.
7/10 = 70%
4/5 = 0.8
70% of 0.8 is 0.56.
0.56 = 14/25
So 4/5 - 14/25 = 6/25
Im not 100% sure this is correct but thats how I would do it it.
The independent variable is your weight on earth because it is what you can control, and it's the norm for us.