Answer:
b 5/12
Step-by-step explanation:
 
        
             
        
        
        
   
The area of a rectangle is:
A =  length × width
A rectangular television screen has an area:
A = w² + 2w inches²
width = w
length = A / width  = (w² + 2w) / w = w(w + 2) / w = <u>w + 2</u>
Ansver:
<h2><u>
length = w + 2</u></h2><h2><u>
</u></h2><h2><u>
</u></h2>
 
        
             
        
        
        
Answer: √0.16
Step-by-step explanation:
√0.16 = 0.4
 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:
We can use the Pythagorean Theorem to check if this triangle is a right triangle:

Note that  and
 and  are the legs of the triangle and
 are the legs of the triangle and  is the hypotenuse:
 is the hypotenuse:
Substitute the lengths of the sides into the equation:


Therefore this triangle is a right triangle. 
 
        
                    
             
        
        
        
Answer:
a) 
b) f(2) = 0.04462
c) f(1) = 0.01487
d) 
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

In which
x is the number of successes
e = 2.71828 is the Euler number
 is the mean in the given interval.
 is the mean in the given interval.
In this question:

a. Write the appropriate Poisson probability function.
Considering 

b. Compute f (2).
This is P(X = 2). So


So f(2) = 0.04462
c. Compute f (1).
This is P(X = 1). So


So f(1) = 0.01487.
d. Compute P(x≥2)
This is:

In which:





Then


So
