Which piecewise relation defines a function? x² x <-
O y = 0-25x34
|-x² xZ4
x² XS-2
Oy= 4, -2 |x? +1, x22
(-3x, X<-2
Oy= 3. OSX<4
2x, x24
y =
(-3x, XS-4
3. -5 2x x>1
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The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

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