Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
180cm^2 & 472ft^2
Step-by-step explanation:
answer of 16 number
h2=p2+b2 ,therefore
h=100+80
h=180
answer of question 17
h2=p2+b2
576=p2+104
576-104=p2
472=p2
 
        
             
        
        
        
Answer:
x = -1 
Step-by-step explanation:
Given the point, (-1, 2), and that the slope is <u><em>undefined</em></u>. 
The standard linear equation of vertical lines is <em>x</em> =<em> a</em>, where the x-intercept is (<em>a</em>, 0), and the slope is undefined because all points on the line have the same x-coordinate.  Attempting to solve for the slope of a vertical line using the slope formula, m = (y₂ - y₁)/(x₂ - x₁), will result in a mathematical operation of <u>division by zero</u> (which is an <em>undefined operation</em>).  
Since the slope is <u>undefined</u>, then it is <u>not possible</u> to create a linear equation in either the slope-intercept form, or point-slope form. 
Therefore, the equation of a vertical line given the point, (-1, 2) is <em>x</em> = -1.  
 
        
             
        
        
        
60/150 = 40%
Hope this helps :D