Answer:
10
Step-by-step explanation:
8 to the second power is 64
6 to the second power is 36
36+64=100
the square root of 100 is 10 
so 10 is the length of the hypotenuse
Hope this helps!
 
        
             
        
        
        
The answer 
<span>the third rope to counterbalance Sam and Charlie is F
and vectF +vectF1 +vectF2 =vect0
let's consider axis
y'y  </span>vectF = -F
      vectF 1= F1cos60
      vectF 2= F2cos45
-F = -F1cos60-F2co45
so F= F1cos60+F2co45= 350x0.5+400x0.7=457.84 pounds
        
             
        
        
        
It would be 60. He sold his painting for 50 which was 10 less that the original price. So 50+10=60
        
                    
             
        
        
        
I think the answer is -1=x-3<4