ernest214
31.08.2019 •
Mathematics
F(x)=-x^2+8x+9
what is the vertex and it the vertex the minimum or maximum? ?
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Ответ:
-8 = -8 = 4
2(-1) -2
Y - Vertex
f(x) = -x² + 8x + 9
f(4) = -(4)² + 8(-4) + 9
f(4) = -(16) - 32 + 9
f(4) = -16 - 23
f(4) = -39
(x, f(x)) = (x, y) = (4, -39)
Ответ:
two will be 12
both together will be 24
same two numbers
there is only 4 equal numbers in 4 dices (12 pairs)
so 24/4 could be the answer