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The easiest way to solve this problems it via trial and error. For any quatdratic (ax² + bx  + C = 0), the coeficcent of x, (i...

First, find the x coordinates of where the lines intersect by setting the equations of the lines equal to each other. Then solve the quadratic (or polynomial) equation. Next, integrate both lines indiv...

The first thing to know is that a square has equal sides, and that the area of a square is length x length.

Therefore in this case

Length x length = 100    or    Length^...

6x + y = 8 (1)       4x - y = 12 (2)

Method 1 elimination:

-Adding/subtracting the two equations together to eliminate one of ...

the lenght of ladder is contant. when it is in the middle of sliding, it make a right angle triangle with the floor and wall, hence (the lenght of the ladder£^2  equal to (the lenght of floor to one en...