<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.
 
        
        
        
Answer:
Solving the system of equations:
x: 1
y: 2
Step-by-step explanation:
Plug it in to see if it is right, to make sure of course.  Better to be safe than sorry.
 
        
                    
             
        
        
        
 Answer:
5 
Step-by-step explanation:
Assuming we want to evaluate |z|, given that, z=4+3i.
Then, by definition of modulus,



Therefore the modulus be of the given complex number is 5 units
 
        
             
        
        
        
Answer:
(6,17)
Step-by-step explanation:
2x+5=3x-1
-3x        -3x
-x+5=-1
-5      -5
-x=-6
^divided by -1 on both sides
x=6
y=2x+5
y=(2)(6)+5
y=17