Answer:
Six inches.
Step-by-step explanation:
1.5 + 2 + 2.5 = 6
 
        
                    
             
        
        
        
to get the equation of any straight line, we simply need two points off of it, so hmmm let's use say (-1 , -1.25) and (8 , -3.5)


 
        
             
        
        
        
Answer:
y=(x+7)2(2x+1)(x−4)
y=2x4+21x3−4x2−399x−196
Step-by-step explanation:
 
        
             
        
        
        
We start with 

 and wish to write it as 

First, pull 2 out from the first two terms: 

Let’s look at what is in parenthesis. In the final form this needs to be a perfect square. Right now we have 

 and we can obtain -10x by adding -5x and -5x. That is, we can build the following perfect square: 

The “problem” with what we just did is that we added to what was given. Let’s put the expression together. We have 

 and when we multiply that out it does not give us what we started with. It gives us 

So you see our expression is not right. It should have a -53 but instead has a -3. So to correct it we need to subtract another 50.
We do this as follows: 

 which gives us the final expression we seek:

If you multiply this out you will get the exact expression we were given. This means that:
a = 2
d = -5
e =  -103
We are asked for the sum of a, d and e which is 2 + (-5) + (-103) = -106
 
        
        
        
Answer: B
Step-by-step explanation:
The green ball 
Speed=Distance/Time 
White ball 143/4=35.75
While green ball 112/3=37.33
37.33>35.75