The mean is 13.4 because after I add the numbers in the set, the sum comes out to be 134. There are 10 numbers in the set, so you divide 134 by 10, which is 13.4 (134 <span>÷ 10 = 13.4). That is how you get the mean. It's "mean" to you because you 'gotta do a lot of work to get your final mean. </span>
        
             
        
        
        
Answer:
4
Step-by-step explanation:
The question is not clear. You have indicated the original function as 12sin(0) - 9sin²(0)
If so, the solution is trivial. At 0, sin(0) is 0 so the solution is 0
However, I will assume you meant the angle to be  rather than 0 which makes sense and proceed accordingly
 rather than 0 which makes sense and proceed accordingly 
We can find the maximum or minimum of any function by finding the first derivate and setting it equal to 0
The original function is 

Taking the first derivative of this with respect to  and setting it equal to 0 lets us solve for the maximum (or minimum) value
 and setting it equal to 0 lets us solve for the maximum (or minimum) value
The first derivative of  w.r.t
 w.r.t  is
 is
                         
And setting this = 0 gives

Eliminating  on both sides and solving for
 on both sides and solving for  gives us
 gives us 
 
 
Plugging this value of  into the original equation gives us
 into the original equation gives us 

This is the maximum value that the function can acquire. The attached graph shows this as correct
 
        
             
        
        
        
Well it would be 63$ if we are not including tax because 80-17=63
        
             
        
        
        
bro where is the pic???? how are we supposed to answer this?
 
        
                    
             
        
        
        
Answer:
98 
Step-by-step explanation: