<h2>
Rate at which area is increasing is 1.08 m²/s.</h2>
Step-by-step explanation:
Area of triangle is with side a and b and angle C between them is given by
                              A = 0.5 ab SinC
Here we need to find how area changes with  a and b fixed and C is changing,
                        
We have
                  a = 8 m
                  b = 9 m
                  
Substituting
                  
Rate at which area is increasing is 1.08 m²/s.
 
        
        
        
The answer is : y = -3x + 1
        
             
        
        
        
The square root of 225 is 15. I hope that helped!
        
             
        
        
        
The product of 15 and 

 is 

. This is a linear binomial.

 is a cubic trinomial. In your original question, I'm not sure what the 

 means.