Answer:
B) -3
Step-by-step explanation:
The sum of the three angles of any triangle is equal to 180 degrees.
180-50-87 = 43.
43 = x+46
x = 43-46
x = -3
 
        
             
        
        
        
<span>The amount of dissolved oxygen in the Missouri River would decrease if large amounts of chemical waste were dumped into it. It would decrease because the chemical waste would feed on the microorganisms and reduce the amount of oxygen in the river.</span>
        
             
        
        
        
Answer:
Always 
Step-by-step explanation:
Right triangles are always similar.
All right triangles have a 90 degree angle.
This means that, they would all look visually similar because of the 90 degree angle.
 
        
                    
             
        
        
        
Answer:
yes
Step-by-step explanation:
yes