Robert climbed 775775775775 steps in 121212\dfrac12122112, - id77577577577512121212733606, shaonaworld

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emilyturchon

10.07.2019

Mathematics

What? ? i don’t understand.

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Ответ:

milkshakegrande101

11.11.2021

Mathematics

Let the two numbers be x and y, then
xy = 99 . . . (1)
x + y = -34 . . . (2)
From (2), x = -34 - y . . . (3)
Putting (3) into (1), gives
(-34 - y)y = 99
-34y - y^2 = 99
y^2 + 34y + 99 = 0
$y= \frac{-34\pm \sqrt{34^2-(4\times99)} }{2} = \frac{-34\pm \sqrt{760} }{2} = \frac{-34\pm 2\sqrt{190} }{2} = -17\pm\sqrt{190}$

Therefore, the two numbers are $-17+\sqrt{190}$ and $-17-\sqrt{190}$

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Robert climbed 775775775775 steps in 121212\dfrac12122112, start fraction, 1, divided by, 2, end fraction minutes.how many steps did he average per minute? steps per minute

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