The answer is 0.7 because 2.2 - 1.5 = 0.7.
        
                    
             
        
        
        
Answer:
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Explanation:
An equality can be transformed in a system of equations by making each side equal to a new variable. In this case the variable y was made equal to each side.
See that may find the solution of such system by graphing both functions in a same coordinate system, where the intersection of the functions would show the solution of the system.
I show you that in the attached image. In such graph, the red curve is the function y = x² and the blue function is y = x³ + 2x.
The intersection point is (0,0) meaning that the solution is x = 0, y = 0.
 
        
                    
             
        
        
        
The best answer would be <span>online banking and only use her local bank when necessary.
Online banking allows users to do bank transaction over the internet from the comfort of your home. Although there are still some risks to online banking, many banks have already adapted safety measures which have improved the system a lot.  
Mobile banking is also an option but it can also pose a great threat if she leaves her phone unattended or if it gets lost. 
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For example, for A and A'
Let:
R=(0,0) the reference point:
![\begin{gathered} \text{Distance between A and R:} \\ d=\sqrt[]{(4-0)^2+(2-0)^2}=2\sqrt[]{5} \\ \text{Distance between A' and R} \\ d=\sqrt[]{(4-0)^2+(-2-0)^2}=2\sqrt[]{5} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Ctext%7BDistance%20between%20A%20and%20R%3A%7D%20%5C%5C%20d%3D%5Csqrt%5B%5D%7B%284-0%29%5E2%2B%282-0%29%5E2%7D%3D2%5Csqrt%5B%5D%7B5%7D%20%5C%5C%20%5Ctext%7BDistance%20between%20A%27%20and%20R%7D%20%5C%5C%20d%3D%5Csqrt%5B%5D%7B%284-0%29%5E2%2B%28-2-0%29%5E2%7D%3D2%5Csqrt%5B%5D%7B5%7D%20%5Cend%7Bgathered%7D)