Answer:
<h2><em><u>
y = -x - 1</u></em></h2>
Step-by-step explanation:
The line is going in a negative direction. This means that the line is negative. The slope is -1. The y- intercept is the coordinate (0,-1). SO the equation is y = -x - 1.
 
        
             
        
        
        
The answer is D or the fourth choice, 12
        
                    
             
        
        
        
Answer:
1161 ft
Step-by-step explanation:
36 ft with the triangles, 900 ft with the squares, 225 ft for the bottom square, so total is 1161 ft.
 
        
             
        
        
        
Answer:
4
Step-by-step explanation:
9x=10x-4
x=4
 
        
                    
             
        
        
        
Answer:
<h3>        
   The father is 40 and the daughter is 20.</h3>
Step-by-step explanation:
x           -  the present age of the daughter
2x         -  the present age of the fathter   
x - 10          -  the age of the daughter ten year ago
2x - 10        -  the age of the fathter ten year ago
Father is older than his dauther, so:
2x - 10 = (x - 10) + 20  
2x - 10 = x - 10 + 20  
2x - 10 = x + 10              {subtract x from both sides}
x - 10 = 10                      {add 10 to both sides}
x = 20
2x = 2·20 = 40