Answer:
Government regulation, Economies of scale
Step-by-step explanation:
Barriers to entry are obstacles that make it difficult to enter a given market. ...
Government Regulation.
Start-Up Costs.
Technology.
Economies of Scale.
Product Differentiation.
Access to Suppliers and Distribution Channels.
Competitive Response.
 
        
                    
             
        
        
        
Make it a fraction
7/25 * 4/4 = 28/100
0.28 = 28 percent
There is a 28 percent chance the next marble will be red
        
             
        
        
        
Answer:
a) W₁ = 78400 [J]
b)Wt = 82320 [J]  
Step-by-step explanation:
a) W = ∫ f*dl      general expression for work
If we have a chain with density of 10 Kg/m, distributed weight would be 
9.8 m/s² * 10 kg   = mg
Total length of th chain is 40 m, and the function of y at any time is
f(y) = (40 - y ) mg   where ( 40 - y ) is te length of chain to be winded
At the beggining we have to wind 40 meters   y = 0 at the end of the proccess  y = 40 and there is nothing to wind then:
f(y) = mg* (40 - y ) 
W₁ =  ∫f(y) * dy    ⇒ W₁ = ∫₀⁴⁰ mg* (40 - y ) dy  ⇒ W₁ = mg [ ∫₀⁴⁰ 40dy - ∫₀⁴⁰ ydy
W₁ = mg [ 40*y |₀⁴⁰   -  1/2 * y²  |₀⁴⁰    ⇒  W₁ = mg* [ 40*40 - 1/2 (40)² ]
W₁ = mg * [1/2]     W₁ = 10*9,8* ( 800 )
W₁ = 78400 [J]
b) Now we can calculate work to do if we have a 25 block and the chain is weightless
W₂ = ∫ mg* dy     ⇒    W₂  = ∫₀⁴⁰ mg*dy   ⇒    W₂  = mg y |₀⁴⁰
W₂ = mg* 40   = 10*9.8* 40  
W₂ = 3920 [J]
Total work
Wt = W₁  +  W₂        ⇒    Wt = 78400 + 3920
Wt = 82320 [J]
 
        
             
        
        
        
Alrigty
in form

the vertex is (h,k)
the constant, a, deterimines the size and direction
if a>0, then the parabola opens up and the vertex is the minimum
if a<0 then the parabola opens down and the vertex is the maximum
so we are given

1>0 so it opens up
vertex is (-2,4)
the vertex is a minimum
the vertex is (-2,4) and the graph has a minimum
 
        
        
        
Answer:
15
Step-by-step explanation:
the pattern is like this
start with 1 then add 2 equals 3
start with 3 then add 3 equals 6
so 6 add 4 equals to 10
and the 5th term will be 10 add 5
equals to 15