Answer:
Step-by-step explanation:
(12+10+x)/3=15
15*3=12+10+x
45-12-20=x
X=23
 
        
             
        
        
        
So 2:5 means that 5/7 animals are cats and 2/7 are dogs. I believe if you divide u will get your answer. 5/7 * 7/2 = 1.25x the number of dogs
        
             
        
        
        
Answer:
14
Step-by-step explanation:
11  - n = -3
-n = -3 - 11 = -14
n = 14
OR 
add n to both sides of equation and add 3 to both sides of equation:
11 - n + n + 3 = -3 + n + 3 ----> n = 14
 
        
             
        
        
        
Answer:
A is f ", B is f, C is f '.
Step-by-step explanation:
Your answer is correct.  B is the original function f.  It has a local maximum at x=0, and local minimums at approximately x=-3/2 and x=3/2.
C is the first derivative.  It crosses the x-axis at each place where B is a min or max.  C itself has a local maximum at approximately x=-3/4 and a local minimum at approximately x=3/4.
Finally, A is the second derivative.  It crosses the x-axis at each place where C is a min or max.
 
        
             
        
        
        
Answer:
your answer would be D. x = 2.5 + y
Step-by-step explanation: