What does N equal? I am stuck and need all the help I can get.

Mathematics

1 answer:

Ksivusya [100]3 years ago

8 0

I'm thinking that n=18 but some parts of the question were cut off so i couldn't quite see it. But this is how I saw it: 4+n/2+2n/n+3=20 and 2 to the power of 18-1, so this is what i got. Hope it helps.

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Solution (1)

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solution (2)

$2x = - x + 2k\pi$

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for k=0 / for k=1 / for k=-1

x=0 / x=2π/3 / x=-2π/3

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Note that i'm trying values of K which make the answer belong to our interval;

So our solution which i will represent as a set is;

S € {0,2π/3,2π}

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AURORKA [14]

Answer:

No, they are not equivalent

Step-by-step explanation:

$\frac{-2}{3}(12b - 6 + 9b - 18) = \frac{-2}{3}(12b + 9b - 6 - 18)\\\\=\frac{-2}{3}(21b - 24)\\\\ = \frac{-2}{3}*21b -24*\frac{-2}{3}\\\\= -2*7b + 8*2\\\\= 2( -7b + 8)$