Answer:
(-1,1).
Step-by-step explanation:
We need to calculate
where R is the radius of convergence.



Applying LHopital rule we obtaing that the limit is 1. So
then R = 1.
As the serie is the form
we center the interval in 0. So the interval is (0-1,0+1) = (-1,1). We don't include the extrem values -1 and 1 because in those values the serie diverges.
Whenever you cut a sandwich in four parts, you make four small sandwiches out of each sandwich you're cutting.
So, if you have six sandwiches, and make four small sandwiches out of each of them, you'll end up with
small sandwiches
Answer:
$5
Step-by-step explanation:

The item is discounted by $5 per week.
Answer:
If nobody walked on the moon, then Neil Armstrong didn't
Step-by-step explanation:
The contrapositive flips the sign of "Neil Armstrong" and the "moon," and also switches their position, so you will switch the hypothesis and conclusion as well
Answer:
y =
x - 1
Step-by-step explanation:
5x + 2y = 12
2y = -5x + 12
y =
x + 6
y = mx + b
4 =
( -2 ) + b
4 = 5 + b
b = -1
y =
x - 1