Answer:
pretty sure is the first one
Step-by-step explanation:
a proportional relationship is a straight line that passes through the origin
 
        
                    
             
        
        
        
Answer:
A.) -84
B.) -6
Step-by-step explanation:
I hope I helped! ^-^
 
        
             
        
        
        
        
Answer:  1.509
Step-by-step explanation:
The formula of Margin of Error for (n<30):-

Given : Sample size : n= 22
Level of confidence = 0.99
Significance level : 
Using the t-distribution table , 
Critical value : 
Standard deviation: 
Then, we have

Hence, the margin of error for a 99% confidence interval for the population mean =1.509
 
        
             
        
        
        
ABC
 MIT 
MEL
are right triangles
to solve this you can get help from 
ThePythagorean Proposition
or use an useful app all in one calculator