To evaluate the radius of the cone we proceed as follows:
V=1/3 πr²h
plugging in the values, v=88π, h=8 ft
step 1
88π1/3πr²(8)
step 2
88π=8/3πr²
step 3
 divide both sides by π
88=8/3r²
multiply both sides by 3/(8)
88(3/8)=r²
step 4
simplify
33=r²
step 5 
get the square root
r=√33
Thus the mistake that Fatima made was:
<span> In step 3, Fatima did not multiply 88 by the reciprocal of 8/3 </span>
        
                    
             
        
        
        
a = ( 1 , 6 ) 
b = ( 4 , 9 ) 

Now just need to put the coordinates in the above equation :



And we're done...♥️♥️♥️♥️♥️
 
        
             
        
        
        
Answer:
.
Step-by-step explanation:
6^3 = 216
(-x)^3 = - x^3.