Answer: 
Step-by-step explanation:
Slope of two lines that are perpendicular to each other is 1.
If one line is  , then its slope = 3   [by comparing to the linear equation y= mx+c, here m=3]
, then its slope = 3   [by comparing to the linear equation y= mx+c, here m=3]
Let n be the slope of the required line, then

Equation of line with slope n and passers through (a,b) is

Equation of line with slope n=  and passes through point ( 0,-4) :
 and passes through point ( 0,-4) :

Hence, Required equation : 
 
        
             
        
        
        
Answer:
YZ= 2.8
Step-by-step explanation:
3n+5=8n-9
-3n -3n
5=5n-9
+9. +9
14=5n
14÷5
2.8=n
 
        
             
        
        
        
Answer is a, 57.49.
17.42-12.60-9.62= $-4.80+62.29=57.49
        
             
        
        
        
The length of the diagonal of the square is the square root of 32 which equals approximately 5.6569. 
The length from the corner to the center of the square is half of the diagonal which is 2.8284. I hope this helps! 
        
             
        
        
        
Answer:
20
Step-by-step explanation: