Answer:1/(3+x)=(1/3)
1
(1−(−x/3))
1/(3+x)=(1/3)1(1−(−x/3))
Use this fact that  
1/(1−t)=
∑
∞
0
t
n
   (∗)
1/(1−t)=∑0∞tn   (∗)
where  
|t|<1
|t|<1
. I mean take  
t=−x/3
t=−x/3
and...
Note that  
|−t|=|t|<1
|−t|=|t|<1
is the radius of convergence 
Step-by-step explanation:
 
        
             
        
        
        
Answer: 60.93 < μ < 69.07
Step-by-step explanation: The true mean of a set of data is between an interval of values with a percentage of precision, e.g., a <u>99% confidence interval</u> means we are 99% confident the true mean is between the lower and upper limits.
To find the interval, use 
x±
z is z-score related to the % of confidence level
In this case, a 99% confidence interval is 2.576
x is sample mean
Calculating:

x = 65
65±
65±4.07
Confidence Interval: 60.93 < μ < 69.07
Meaning that we are 99% sure the population means is between 60.93 and 69.07.
 
        
             
        
        
        
Answer:
The perimeter should be 49 centimeters
Step-by-step explanation:
 You're just adding up the centimeters that are stated in the question and then just putting the number there in the answer
 
        
             
        
        
        
Y=mx+b
m=slope=rise/run
if slope>0, then it increases
if slope<0, then decreases because it is going down
y=7-2x
y=-2x+7
-2<0
decreasing
because the y values decrease from left to right
the x values always increase if you go from left to right
B is the answer