Mathematics, 18.08.2019 14:00, supermkimbrel

Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -5x2 + 7x + 6.
answers are:
-5/7
6
7/10
-7/5
need answer
-

Answers: 1

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Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -5x2 + 7x + 6. answers are: -5/7 6 7/10 -7/5 need answer -

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Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -5x2 + 7x + 6.
answers are:
-5/7
6
7/10
-7/5
need answer
-