Answer:
They have equal ticks and angles. They are congruent because they are equal in all sides and angles. 
Step-by-step explanation:
 
        
             
        
        
        
18/12=22.50/n
he could buy 15 gallons
        
             
        
        
        
Answer:
8
Step-by-step explanation:
sin theta = opposite side/ hypotenuse
sin 30 = 4/x
Multiply each side by x
x sin 30 = 4
Divide each side by sin 30
x sin 30 /sin 30 = 4 sin 30
x = 4 /sin 30
We know that sin 30 = 1/2
x = 4 / 1/2
x = 8
 
        
                    
             
        
        
        
The answer to this problem would be 0.0492.
Hope this helps
        
                    
             
        
        
        
Answer:
The union of two event
Step-by-step explanation:
 Addition law of probability  define that probability of two event  is total sum of probability of any event subtract the probability of both events
There are two rules  in addition law:
Addition law 1 -  when both event are mutually exclusive, then probability of either event is the sum of each event probability.
P( A or B) = P(A) +P(B)
Addition law 2 -  when both events are non mutually exclusive then there in addition to the individual probability there is some overlap .
P( A or B) = P(A) +P(B) - P(A and B)