Answer:
4
Step-by-step explanation:
2.5+1 1/2
Change the fraction to a decimal
2.5 + 1.5
4
 
        
             
        
        
        
Solve the rational equation by combining expressions and insulating the variable X .
all real numbers .
        
             
        
        
        
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:
Equilateral Triangle
Step-by-step explanation:
Since each side is the same length, divide the perimeter by side length to get the number of sides.
36in ÷ 12in = 3
A triangle has 3 sides.