Answer:
9
Step-by-step explanation:
Area of a triangle=(base*height)/2
1) Input the values 
54=(12h)/2
2) Multiply both sides by 2
54*2=(12h/2)2
108=12h
3) Divide both sides by 12
108/12=12h/12
9=h
I hope this helps! Please comment if you have any questions.
 
        
                    
             
        
        
        
Answer:
Supplementary Angles.
 Two Angles are Supplementary when they add up to 180 degrees. Notice that together they make a straight angle. But the angles don't have to be together.
 
        
             
        
        
        
Answer:
63
Step-by-step explanation:
64+53+ (ㅣ) = 180
117 + (ㅣ) = 180
(ㅣ) = 63
 
        
             
        
        
        
a triangle adds to 180 degrees
we have 90 and 40 so the hypotenuse is 50 degrees
        
                    
             
        
        
        
According to the graph given, and using it's concept, it is found that the initial value of the domain is of 0.
The <em>domain</em> of a function is the <u>set that contains all possible input values</u>.
- In a graph, it is <u>represented by the values of x</u>, which is the horizontal axis.
In the graph given in this problem, the function is <u>defined for x between 0 and 2</u>, that is, the <em>domain </em>is [0,2], hence, the initial value of the domain is of 0.
To learn more about domain, you can take a look at brainly.com/question/25897115