Laurie O.

asked • 02/22/18

quadratic question

 
 
One end of a ladder is resting on the top of a vertical wall that is 3 feet high. The distance from the foot of the ladder to the base of the wall is 2 feet less than the length of the ladder. How long is the ladder? Suggestion: Recall the Pythagorean theorem, which says for legs a and b and hypotenuse c of a right triangle that
a2 + b2 = c2.
Apply this theorem to the figure below, where x is measured in feet.
x =

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