Answer:
30
Step-by-step explanation:
Complementary angle to B = 90 - 60 = 30
 
        
                    
             
        
        
        
Answer: 3.11637
Explanation: The hundred thousandths place is in the fifth place after the decimal. To avoid remembering this, you can simply note that the first place after the decimal is the tenths. You simply keep progressing as you would in whole numbers. 
For example 10 becomes 100 when a zero is added. This zero is always added right beside the first zero and indicates the hundreds place.
Furthermore, the general rule for rounding is if the number after the preferred rounding place is 4 or less, the number remains the same. 5 or more means it goes up by one digit.
        
                    
             
        
        
        
If your looking for slope Intercept form. y = 2/3x + 6.67. and
y = 2x + 4
I think
        
             
        
        
        
Note that if 

, then 

, and so we can collapse the system of ODEs into a linear ODE:


which is a pretty standard linear ODE with constant coefficients. We have characteristic equation

so that the characteristic solution is

Now let's suppose the particular solution is 

. Then

and so

Thus the general solution for 

 is

and you can find the solution 

 by simply differentiating 

.
 
        
        
        
The answer is 4.5*5*-2= -45 Thanks!