Answer:

Step-by-step explanation:
we know that
If LM is the midsegment 
then

substitute the given values

Solve for x





 
        
             
        
        
        
Answer:
the length will need to be increased by 5 feet 
 
        
             
        
        
        
The answer would be about 0.111
        
                    
             
        
        
        
Answer:The mean number of checks written per day = 0.3370
The standard deviation = 0.5805
The variance = 0.3370
Step-by-step explanation:
Let the random variable x represent the number of checks he wrote in one day.
Given : The number of checks written in last year = 123
Let the number of days in the year must be 365.
Now, the mean number of checks written per day will be  :-

We know that in Poisson distribution , the variance is equals to the mean value .


Thus,  Standard deviation = 0.5805
 
        
             
        
        
        
Answer:
6x + 200 = 17,000
Step-by-step explanation:
Lower level = 4x - 300
Mid level = 2x + 500
Combine the two equations to find the number of seats in the upper level
(2x + 500) × (4x - 300) = 17,000
Combine like terms
4x × 2x + 500 - 300 = 17,000
<em>6x + 200 = 17,000</em>