Answer:
8 units^2
Step-by-step explanation:
The area of a triangle is given by
A = 1/2 bh
A = 1/2 (7-3) * (4-0)
    = 1/2 4*4
    = 8
 
        
             
        
        
        
Answer:40 square yards
Step-by-step explanation:
Given
Floor area A=10 square yards
Red tile costs  per square yards
 per square yards
White tile costs  per square yards
 per square yards
Total money spent= on tiles
 on tiles
Suppose red tiles cover an area of  square yards
 square yards
So, we can write

Red tiles cover an area of 40 square yards  
 
        
             
        
        
        
Answer:
Help with what? You didn't post anything.
Step-by-step explanation:
 
        
                    
             
        
        
        
The answer is 7 i’m pretty sure
        
                    
             
        
        
        
Since arc CD is 100 degrees, the rest of the circle must be 260 degrees.  Since the rest of the circle is made up of two equal arcs, then arc BC must be half of 260 degrees.  Thus, the answer is 130 degrees, C.