Which equation represents the value of x?
x=√y²+100
x=10−y
x=10+y²
x=√100−y²
\(x^2+y^2=10^2 <=> x^2+y^2=100 <=> x^2=100-y^2 <=> x=\sqrt{100-y^2}\)
So :\(x=\sqrt{100-y^2}\)
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