Answer:
See explanation. 
Step-by-step explanation:
We need a point and a slope to have a point slope equation. 

We need a slope and y-intercept to write in slope intercept form. 

A)  or
 or 
B) 
C) 
D) 
 
        
             
        
        
        
16/80 = 1/5 just put it into the calculator 
        
             
        
        
        
Answer:
-2x² - 8x - 15
Step-by-step explanation:
-(2x² + 4x + 11) + (-4)
-2x² - 8x - 11 - 4
-2x² - 8x - 15
 
        
             
        
        
        
To find which measure of variability is greater and which average number of monthly fatalities is higher, you will need to calculate the mean and the mean absolute deviation for both years 
 The mean will tell us which is generally higher, and the mean absolute deviation will tell us which has a greater variability. 
 The correct answer is D. 
 Please see the attached picture for the work. 
 
        
        
        
The matrix equation has no solution because the same matrix of equal magnitude and opposite in nature is been added to it.
Given to us
A + [11   17   -8    13] = [0   0   0   0]
<h3>What is the value of matrix A?</h3>
We know that the given matrix will give values as zero if the same matrix is been deducted from it, therefore,
A + [11   17   -8    13] = [0   0   0   0]
A = [0   0   0   0] - [11   17   -8    13]
A = [-11   -17   +8    -13]
Thus, the matrix is equal to [-11   -17   +8    -13].
<h3>why this matrix equation has no solution?</h3>
The matrix equation has no solution because the same matrix of equal magnitude and opposite in nature is been added to it, therefore, [11   17   -8    13] is been added to it.
Thus, the sum of the two matrices has no solution.
Learn more about Matrices:
brainly.com/question/11367104