Before you run any statistical test, you must first determine your alpha<span> level, which is also called the “significance level.” By definition, the </span>alpha<span> level is the probability of rejecting the </span>null<span> hypothesis when the </span>null<span> hypothesis is true.</span>
        
             
        
        
        
X=72 cause 180-(51+57) so 180-108 and the triangle is acute cause all of the angle measures are below 90 degrees. 
So your answer is 
x=72
Acute Triangle
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
- Measure of angle J K H + measure of angle J K L = 180 degrees 
True. 
- Measure of angle J K L + measure of angle J L K + measure of angle K J L = 180 degrees 
True.  The sum of all interior angles = 180
- Measure of angle J K H = measure of angle J L K = 
Can't tell from info given.  
- Measure of angle J K L + measure of angle J L K = 90 degrees 
Can't tell from info given. 
- Measure of angle K J L = measure of angle K L J
Can't tell from info given. 
 
        
                    
             
        
        
        
The answer is 12/16... divide the fraction by 4 and you get 3/4
        
             
        
        
        
Seeing where the x and y diffreant on the line :)