The answer is A. S= 4A. Sam = Allie x 4 
        
                    
             
        
        
        
I think the answer is -9.
        
             
        
        
        
Answer:
(a) is a real number as the answer is -3
(b) is not a real number as the answer is an imaginary number
Step-by-step explanation:
For (b), when you root a negative number, you will get an imaginary number which is not a real number
 
        
             
        
        
        
Answer:

Step-by-step explanation:
<u>Subtractive Areas
</u>
When we want to find areas of surfaces that are inside of greater surfaces, we must subtract the greater minus the rest of it. We want to find the shaded area which is part of the circular sector, along with a right triangle shown in the figure. The area of a circle is

The area of a circular sector of center angle \theta is

The area of a right triangle with base b and height h is

We have the value of  is
 is


The radius is half the diameter, thus

The area of the circular sector is computed now:


We also have the length of the base as double of the given value (because of symmetry)


The height is

The area of the triangular surface is


Finally, the shaded area that Geneva will lose from the table is



 
        
             
        
        
        
Answer:The answer is c
Step-by-step explanation: