3 years ago

D + 3 < 12

Mathematics

1 answer:

rusak2 [61]3 years ago

5 0

D + 3 < 12
-3 from both sides.
D=9
so your correct answer is D<9
aka
D

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Answer:

Step-by-step explanation:

$\text{The vertex form of an an equation of a quadratic function:}\\\\y=a(x-h)^2+k\\\\(h,\ k)-vertex\\\\\text{We have}\ g(x)=(x-h)^2+k,\ \text{and the vertex in}\ (9,\ 8).\\\\\text{Therefore}\ h=9\ \text{and}\ k=8.\ \text{substitute:}\\\\g(x)=(x-9)^2+8$