Julie and Alex are trying to calculate the circumference of the equator around Europa, a moon of Jupiter, for a school project. Europa has an approximate diameter of 1,940 miles. A formula used to calculate the circumference of a circle is LaTeX: C=\pi dC = π d, where LaTeX: dd is the diameter of the circle. Alex tells Julie to use 3.14 as the approximation for LaTeX: \piπ in the formula. Julie wants to use the LaTeX: \piπ key on her calculator. Will it make a significant difference if Julie uses 3.14 as an approximation for LaTeX: \piπ?

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