Answer:
n 1932 DeBakey devised the “roller pump,” an essential component of the heart-lung machine that permitted open-heart surgery. He also developed an efficient method of correcting aortic aneurysms by grafting frozen blood vessels to replace diseased vessels.
Works written: The New Living Heart
Born: September 7, 1908, Lake Charles
Died: July 11, 2008
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
110%
Step-by-step explanation:
if each square is a whole, then when one is filled, it's 100% . 10% of the other square is filled so you just add the two.
 
        
             
        
        
        
1. 0 - 34 + 13 - 5 = -26.....26 ft below the surface
2. y = 15x + 50
    220 = 15x + 50
    220 - 50 = 15x
    170 = 15x
    170/15 = x
    11 1/3 = x......he worked 11 1/3 hrs.......not sure about this...because it does not specify how many visits he made...but if this was just for 1 visit, then he worked 11 1/3 hrs
        
             
        
        
        
Answer:
 Center: (-1,8)
 Radius: 1
 The graph is attached.
Step-by-step explanation:
 The equation of the circle has the form:
 
 Where (h,k) is the  point of the center of the circle and r is the radius of the circle.
 The equation given in the problem is
 
  Therefore:
 h=-1
 k=8
  Then, the center is (-1,8) and radius is 1.
 You can graph the circle with its center at the (-1,8) and a radius of 1 as you can see in the figure attached.
 
        
                    
             
        
        
        
Answer:
22x^2+x+3
Step-by-step explanation: