Answer:
24
Step-by-step explanation:
 f(x)=x^2+2x
Let x= 4
 f(4)=4^2+2*4
      = 16 + 8
     = 24
 
        
             
        
        
        
X= + or- square root 66 i solved using the pq formula but u can also use the quadratic formula as well and the square root formula but I'ma show u how to solve it with pq it's on this image hope it helps and mark me brainliest 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
1,2,3,3,3,3,5,6,7,10,10,10,11,11,12,12,13,13,
14,15
 
        
             
        
        
        
Yes but In the bigger group each person would have less
        
             
        
        
        
Answer:
Fn= 174.9 N : Magnitude of the net force the people exert on the donkey.
Step-by-step explanation:
We find the components of the forces in x-y-z
Force of  Jack in z   =F₁z=90.5 N in direction (+z)
Force of  Jill  in x     = F₂x= -82.3*cos45°= - 58.19 N (-x)
Force of  Jill  in y     =F₂y=-82.3*sin45°=   + 58.19 N (+y)
Force of  Jane  in x  =F₃x=125*cos45°=   + 88.4 N (+x)
Force of  Jane  in y   =F₃y=125*sin45°=   + 88.4  N (+y)
Calculating of the components of the net force the people exert on the donkey.
Fnx= F₂x+F₃x=( - 58.19+ 88.4 )N=30.2N (+x)
Fny= F₂y+F₃y=( 58.19+88.4 ) = 146.59 N (+y)
Fnz =F₁z=90.5 N  (+z)
Calculating of the magnitude of the net force the people exert on the donkey.


