if x is a positive number and 1/2the sq.root of x is equal to 2x, then x is equal to?
OA [spoiler]1/16[/spoiler]
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truplayer256
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sqrt(x)/2=2x
sqrt(x)=4x
Divide both sides by sqrt(x)
4sqrt(x)=1
sqrt(x)=1/4
Square both sides.
x=(1/4)^(2)=1/16
sqrt(x)=4x
Divide both sides by sqrt(x)
4sqrt(x)=1
sqrt(x)=1/4
Square both sides.
x=(1/4)^(2)=1/16
