Answer:

Step-by-step explanation:
The midpoint is essentially a point with the average of the 2 x-coordinates and the 2 y-coordinates. 
The formula is: 

We are given two points: A (7,0) and B (0, 3). Remember points are written as (x, y).
Therefore, 

Substitute the values into the formula. 

Solve the numerators first. 

The midpoint can be left like this because the fractions are reduced, but it can be written as decimals too. 

 
        
             
        
        
        
Answer:
7n^2
Step-by-step explanation:
Multiply 8/n by 7n/7n to get 56n/7n^2
 
        
             
        
        
        
Answer:
Population Mean = 2.0
Population Standard deviation = 0.03
Step-by-step explanation:
We are given that the inspector selects simple random samples of 30 finished products and computes the sample mean product weight.
Also, test results over a long period of time show that 5% of the values are over 2.1 pounds and 5% are under 1.9 pounds.
Now, mean of the population is given the average of two extreme boundaries because mean lies exactly in the middle of the distribution.
So,   Mean,  =
 =  = 2.0
 = 2.0
Therefore, mean for the population of products produced with this process is 2.
Since, we are given that 5% of the values are under 1.9 pounds so we will calculate the z score value corresponding to a probability of 5% i.e. 
              z = -1.6449 {from z % table}
We know that z formula is given by ;  
                  ~ N(0,1)
 ~ N(0,1) 
               -1.6449 =  ⇒
     ⇒   
  
                                            ⇒  0.0608 *
 0.0608 *  {as sample size is given 30}
  {as sample size is given 30} 
                                            ⇒  = 0.03 .
 = 0.03 .
Therefore, Standard deviation for the population of products produced with this process is 0.0333.
 
        
             
        
        
        
Angle NBW is 34 so do the math
        
             
        
        
        
I would estimate around 6 because say it was 6.5 and 3 then it would around the square root of like 31 and that is rounding down a lot so we would bump it up to somewhenre around 35 so the side would be around 5.8-6