Answer:
positive
Step-by-step explanation:
 
        
             
        
        
        
Answer:
V = 21145.01 mm³
Step-by-step explanation:
Given that:
The radius of the gumball = 30  mm
The radius of the spherical hollow-core = 28 mm
Consider the radius of the gumball to be  and the radius of the spherical hollow-core to be
 and the radius of the spherical hollow-core to be  . Then;
. Then;
The volume of the gumball can be determined by using the formula of a sphere.


V = 21145.01 mm³
 
        
             
        
        
        
Point slope form
y-y1=m(x-x1)
slope=m
a point is (x1,y1)
slope=(y2-y1)/(x2-x1)
given
(-6,4) and (2,0)
slope=(0-4)/(2-(-6))=-4/(2+6)=-4/8=-1/2
a point is (-6,4)
x1=-6
y1=4
y-4=-1/2(x+6)
not listed
        
             
        
        
        
Answer:
 
    
Step-by-step explanation:
Given


Required
Find a and b
Substitute  for x and y in
 for x and y in 



Rewrite as:

The above implies that (a) is correct;
Hence:
 
    
So, the equation is:
