Maria incorrectly placed the decimal point when she wrote 0.65 inch fo the width of her computer. what is the correct decimal number for the width?

It should be placed after 6 it means 6.5inch

Step-by-step explanation:

Maria should placed the decimal point after 6 it means 6.5 inch. Because the order of the width of her computer should be in between 6 inch to 9 inches.

Width of a computer cannot be 0.65 inches because it will be too short and we cannot called it computer on the other hand if she put the decimal after 5 then the width of her computer will be 65 inches which is not normal.  

x2/2x2-5xy+2y2*2x2y-xy2/(2xy2)2

Final result :

 2x5y2 + 16x3y5 - 20x2y3 - 1

 ———————————————————————————

            4xy2            

Step by step solution :

Step  1  :

Equation at the end of step  1  :

    (x2)                                           (y2)  

 (((————•(x2))-5xy)+2•(y2))•2)•(x2))•y))-(x•—————————)

     2                                          ((2xy2)2)

Step  2  :

             y2  

Simplify   ——————

           22x2y4

Dividing exponential expressions :

2.1    y2 divided by y4 = y(2 - 4) = y(-2) = 1/y2

Equation at the end of step  2  :

    (x2)                                          1  

 (((————•(x2))-5xy)+2•(y2))•2)•(x2))•y))-(x•—————)

     2                                          4x2y2

Step  3  :

Equation at the end of step  3  :

    (x2)                                1

 (((————•(x2))-5xy)+(((2y2•2)•x2)•y))-————

     2                                4xy2

Step  4  :

Multiplying exponents :

4.1    21  multiplied by  21   = 2(1 + 1) = 22

Equation at the end of step  4  :

    (x2)                             1

 (((————•(x2))-5xy)+((22y2•x2)•y))-————

     2                             4xy2

Step  5  :

           x2

Simplify   ——

           2

Equation at the end of step  5  :

    x2                               1

 (((—— • x2) -  5xy) +  22x2y3) -  ————

    2                              4xy2

Step  6  :

Multiplying exponential expressions :

6.1    x2 multiplied by x2 = x(2 + 2) = x4

Equation at the end of step  6  :

   x4                         1

 ((—— -  5xy) +  22x2y3) -  ————

   2                        4xy2

Step  7  :

Rewriting the whole as an Equivalent Fraction :

7.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  2  as the denominator :

          5xy     5xy • 2

   5xy =  ———  =  ———————

           1         2