X=-3 which is a positive value? A x B x^2 C x^3 D x+3
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<h2>Length of the other leg, expressed in radical form is 
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Step-by-step explanation:
We have Pythagoras theorem,
Hypotenuse² = Base² + Perpendicular²
Here we have
Hypotenuse = 9
Base = 7
Substituting
9² = 7² + Perpendicular²
Perpendicular² = 81 - 49
Perpendicular² = 32
Length of the other leg, expressed in radical form is