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2 years ago

11

Round 0.090999 to four decimal places.

1 answer:

baherus [9]2 years ago

5 0

0.0910, I think.

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My dyslexia did not like theese numbers

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X ^3 + 6x^2 +12x+8 ÷(x+2)<br>

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What is the reciprocal of 3 and 1/5

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The <em>correct answer</em> is:

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Anybody know the right answer?

Dmitry_Shevchenko [17]

If we just have

$y = \cos x$

that's an amplitude of 1 and a period of $2\pi$

Let's modify this step by step.

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$y = 4 \cos x$

Period of π. Double the period means a factor of 2 on the inside.

$y = 4 \cos(2x)$

Horizontal shift of π/2 to the left. To the left means adding a positive number to x. The question appear ambiguous. It's not clear to me if we add to x or 2x; let's make it

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Vertical shift of 3:

$y = 3 + 4 \cos(2(x + \frac \pi 2))$

$y = 3 + 4 \cos(2x + \pi)$

Depending on the interpretation of the phase shift, that pi may be a pi/2.

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2 years ago

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zavuch27 [327]

10860 is what i think the answer is to this

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