You’re correct answer would be : 14 lmk if this is correct if not I’m so SORRY
        
             
        
        
        
Answer:
300L per hour
Step-by-step explanation:
The rate of change of volume of blood pumped by the teenager's heart expresses the volume of blood pumped with respect to hour.
Rate of change of volume of blood = 
                            = 
                            = 300L/hour
The rate of change of volume of blood by the teenager's heart is 300 litres per hour. This implies that his/ her heart pumps 300 litres of blood every hour.
 
        
             
        
        
        
Area =  the top semicircle + the rectangle AEBD
= 1/2 pi*6^2 + 6*12  =  128.55 cm^2 to nearest 100th
Perimeter = 6pi + 12 + 2 pi * 3 = 49.70 cm
        
             
        
        
        
Answer:

Step-by-step explanation:
The given expression is  .
.
The technique that can be used to factor this polynomial is the difference of two squares.
We rewrite the two expressions as;

Recall that;


