Answer:
x= 3/17
Step-by-step explanation:
4x(2x+6) =8x^2(23-5)
8x^2 +24x = 144 x^2
24x = 136 x^2
24= 136 x
x=24/136
x=3/17
 
        
             
        
        
        
The cost of 85 shirts is 400+7.5*85=1037.5
The average per shirt is 1037.5/85=12.206
        
             
        
        
        
Answer:
zeleh
Step-by-step explanation:
vondo casa de pellande
 
        
             
        
        
        
Answer:
The  weight that separate the top 8% by 5.2605 and the weight that separate bottom 8% by 5.1195.
Step-by-step explanation:
We are given that 
Mean,
Standard deviation,
We have to find the two weights that separate the top 8% and the bottom 8%.
Let x1 and x2 the two weights that separate the top 8% and the bottom 8%.
Z-value for p-value =0.08 =
For 8% bottom





For 8% top
p-Value=1-0.08=0.92
Z- value=1.41
Now, 




(x1,x2)=(5.1195,5.2605)