Answer:
D) x+y=12, x=2y
Step-by-step explanation:
We know that x+y=12 and x=2y given the word problem, so D is correct.
 
        
                    
             
        
        
        
Answer:
In 24 years there will be 140 foxes
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
a) A triangle which the angles ratio is 1 : 2 : 3 is a 30º - 60º - 90º right triangle.
b) The shortest side is opposite to the shortest angle. So, we can calculate it using sin 30º.



 
        
                    
             
        
        
        
Answer:
There are two points of intersection
(-4,1) and (1,-4)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1. is no
Step-by-step explanation:
.