Answer: x = 8, y = 2, coordinates (8,2)
Step-by-step explanation:
2x = 4y + 8 (divide by 2 to get value of x)
x = 2y + 4
(now substitute x into the second equation to find value of y)
2y + 4 - 2y = 4
2y - 2y = 4 - 4 (divide by 2 to get value of y)
y - y = 2 - 2
y = 2
Now plug in value of "y" to get value of "x".
x - 2(2) = 4
x - 4 = 4
x = 8
Coordinates (8,2)
 
        
             
        
        
        
Answer:
87.5
Step-by-step explanation:
-2
 
        
             
        
        
        
Answer: The next three terms =2.56, - 1.024 and 0.4096
Step-by-step explanation:
Common Ratio of a Geometric sequence, R is calculated as
=a2/a1 = -40/100=-0.4
 or a3/a2=16/ -40 = -0.4 
 such that the next three terms are 
5th term =  -6.4 x -0.4=2.56
6th term= 2.56 x -0.4 =-1.024
7TH term= -1.024 x -0.4=0.4096
 
        
             
        
        
        
Answer:
158.4 degrees. 
Step-by-step explanation:
A line is 180 degress in total so subtract 21.6 from 180. Then you get 158.4 
 
        
             
        
        
        
Answer:
y=-5x+17
Step-by-step explanation: