Well i know that 12x12=144 so it is 12!
        
                    
             
        
        
        
Answer:
it looks like it would just be -1
Step-by-step explanation:
there two -x and two positive x which would cancel out. three positive 1 and four negative 1. -4+3= -1
that's the best I could come up with 
 
        
                    
             
        
        
        
Answer:
cot²x
Step-by-step explanation:
Using the identity
sin²x + cos²x = 1, then
1 - sin²x = cos²x
1 - cos²x = sin²x
Thus
 =
 =  = cot²x
 = cot²x
 
        
             
        
        
        
Answer:

Step-by-step explanation:
If A = (-3,-1) and B = (4,4),  the slope of AB is

Two perpendicular lines have slopes that have product of -1:

The equation of the line BC with slope -1.4 and passing through the point B(4,4) is

 
        
             
        
        
        
9514 1404 393
Answer:
   C.  1/(4a)
Step-by-step explanation:
We assume you're comparing the vertex form ...
   y = a(x -h)^2 +k
to the form used to write the equation in terms of the focal distance p.
   y = 1/(4p)(x -h)^2 +k
That comparison tells you ...
   a = 1/(4p)
   p = 1/(4a) . . . . . . multiply by p/a; matches choice C
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<em>Additional comment</em>
When using plain text to write a rational expression, parentheses are needed around any denominator that has is more than a single constant or variable. The order of operations requires 1/4a to be interpreted as (1/4)a. The value of p is 1/(4a).
When rational expressions are typeset, the fraction bar serves as a grouping symbol identifying the entire denominator:
   