Answer:
use the mixed fraction mathsoup calculator, it shows step by step, im just trying to help
Step-by-step explanation:
hope i helped:)
 
        
                    
             
        
        
        
Y = -3x + b
Plug in point
-4 = -3(3) + b
-4 = -9 + b, b = 5
Solution: y = -3x + 5
        
             
        
        
        
Answer: <em>Multiplying these factors gives the approximate volume of the original body</em>
Step-by-step explanation:
<em>The given convex body can be approximated by a sequence of nested bodies, eventually reaching one of known volume (a hypersphere), with this approach used to estimate the factor by which the volume changes at each step of this sequence.</em>
 
        
             
        
        
        
Lets say the 3x3 Matrix is 
M =   [1   5   2 ]
         [1   1   7 ]
         [0  -3   7 ]
We apply the Gauss-Jordan elimination method
 (Procedure and result shown in the image below)
 
        
        
        
Answer:
C 
Step-by-step explanation:
The sum of the angles is 90 
2x + x = 90 
3x = 90 
x = 30 
the angle ABC is 2x, so it means that is the double of x, so it is 60 degrees