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A person 6' tall wants to buy a jump rope. If , when the rope is at its lowest point, his hands will be 2' apart and 3' above the ground, and if the rope will take on the shape of a parabola just barely hitting the ground, how long must the rope be? [Consider the form of the rope to be described by the equation , with the origin being a spot on the ground underneath the jumper.]
Confounds
Variables that obscure the clear understanding of the relationship between different variables in a study, due to their intertwined effects.
Dependent Variable
In scientific research, the variable that is measured to see how it is affected by changes in another variable (the independent variable).
Independent Variable
In research, this is the variable that is manipulated or changed to observe its effect on a dependent variable.
Independent Variable
In research, the variable that is manipulated or changed to observe its effect on a dependent variable.
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