NeverEndingCycle

08.04.2020 • 

Mathematics

You look behind the stove and discover a slice of bread that you miss placed several weeks ago. Needless to say, it is covered with mold. Since the mold started growing, the area it has covered doubled each day. By the end of the eighth day, the entire surface of the bread is covered. When was the bread half covered with mold?

Ответ:

mattie2353

03.12.2020

Mathematics

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K(x) = (1/4)^x

(1,4) when x = 1, k(1) = (1/4)^1 = 1/4FALSE
(3, 1/64) when x = 3, k(3) = (1/4)^3 = 1/64TRUE
(-1,4) when x = -1, k(-1) = (1/4)^-1 = 4TRUE
(0, 1/4) when x = 0, k(0) = (1/4)^0 = 1FALSE

answer
(3, 1/64)
(-1,4)

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