let's recall the vertical line test, it's a function if when dropping a vertical line on the graph, it only touches it once on the way down.
Check the picture below.
 
        
             
        
        
        
Using the Pythagorean triples, one side is 3 units long, one side is 4 units long, and one side is 5 units long. To find the area of a right triangle, multiply length times width. Then divide total by two. 
So, 
(3•4)/2= 6 units
After scaling units, you should get 24 units.
        
                    
             
        
        
        
Answer:
D. m∠A=43, m∠B=55, a=20
Step-by-step explanation:
Given:
∆ABC,
m<C = 82°
AB = c = 29
AC = b = 24
Required:
m<A, m<C, and a (BC)
SOLUTION:
Find m<B using the law of sines:








m<B = 55°
Find m<A:
m<A = 180 - (82 + 55) => sum of angles in a triangle.
= 180 - 137
m<A = 43°
Find a using the law of sines:


Cross multiply


 (approximated)
 (approximated)
 
        
             
        
        
        
Answer:
C. 150
Step-by-step explanation:
60+150+120+270=600
600/4=150
 
        
             
        
        
        
Answer- 28 classes
Step-by-step explanation:
822-150= 672  672/24 = 28