Answer:
142.857143
Step-by-step explanation:
calculator lol
 
        
             
        
        
        
820.681 in expanded form would look like this: 
 
 
        
        
        
Answer:
C
Step-by-step explanation:
i took test
 
        
             
        
        
        
Answer:
The  probability that she gets all 7 questions correct is 0.0078.
Step-by-step explanation:
We are given that Karri takes a 7 question true-false test and guess on every question.
The above situation can be represented through binomial distribution;
  
         
where, n = number of samples (trials) taken = 7 question
             r = number of success = all 7 questions correct
             p = probability of success which in our question is probability that
                    question is correct, i.e. p = 50%
Let X = <u><em>Number of question that are correct</em></u>
So, X ~ Binom(n = 7, p = 0.50)
Now, the  probability that she gets all 7 questions correct is given by = P(X = 7)
          P(X = 7)  =   
 
                         =   
 
                         =  <u>0.0078</u>
 
        
             
        
        
        
Answer:
The first store 
Step-by-step explanation:
Given data
Let us find the unit cost on each sale 
A price for pineapples is $5 for two pineapples
Unit cost per pineapple 
=5/2
=$2.5 per pineapple
price for pineapple is $8 for four pineapples
Unit cost 
=8/4
=$2 per pineapple
Hence the first store offers the lowest price per pineapple $2.5