Use the Cosine Rule to find this
cos <B  = [b^2 - a^2 - c^2] /  -2ac 
               =  [ 4^2 - 10^2 - 11^2] / -2*10*11
               =   0.93182
so m < B  =   21.3 degrees to nearest tenth.  Answer
        
             
        
        
        
Answer:
the student who have a prime number is Maria 
Step-by-step explanation:
        
                    
             
        
        
        
she needs 10 feet because 6 2/3 yard converted into feet is 20 and 30-20=10
 
        
             
        
        
        
When you have a set of data points and you want to get a model out of it, you do data fitting. The first thing to do is plot the points using a scatter plot type of chart as shown in the picture. I used MS Excel as a tool for data fitting. On the left side of the picture, I used linear fitting. Then, it gives you the linear equation y=0.2907x + 2.2643. It has a correlation coefficient, R^2, of 0.9595. This measures how good your data fits the model equation. The closer it is to 1, the better. However, it is rare to get 1 because that is very ideal. A R^2 of 0.9595 is very satisfactory already. But if you want an even better model, the right side of the picture shows data fitting on a quadratic equation with an equation of y=0.0209x^2 +0.506x+2.0232 with R^2 of 0.9992.