Answer:
The answer is -a-bc+43
Step-by-step explanation:
Pull terms out from under the radical, assuming positive real numbers
 
        
             
        
        
        
I don’t know what you want me to solve
        
             
        
        
        
Answer:
3.897 
Step-by-step explanation:
equilateral triangles are also equiangular, meaning the have equal angles.
Triangle sum theory says that angles of a triangle add up to 180. 
That means each angle is 60.
A = bh/2
You need the (h). The base of is 3.  Perimeter = 9, so each side is 3
Draw a perpendicular line for the height. The line cuts the base in half (1.5) 
Using trigonometry you can find the height.
tan 60° = h/1.5
h = height, 1.5 is half of 3, 60° is the base angle. 
multiply each side by 1.5 
1.5(tan 60°) = h
h=2.598 
then substitute h into formula
A= <u>(2.598)(3) </u>
            2 
A = 3.897 rounded
 
        
             
        
        
        
Answer:
it's option c x(7y)
Step-by-step explanation:
you don't need any order to multiply
 
        
             
        
        
        
-mn^2-5m^2/(5m-2)(m+4n)
if I did it correctly