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3 years ago

8

A regular decagon is mapped onto itself every time it is rotated

1 answer:

Luda [366]3 years ago

4 0

Not sure if this is true or false but if you rotate the decagon 45 degrees it is mapped onto itself every time. So if this is true or false it is true.

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I need to know the answer to 5n-2=3n+40

andrew11 [14]

Hey there!

$5n -2$ $= 3n +40$
Firstly, let's $subtract$ by the number $3n$ on both of your sides
$5n -2-3n$ $= 3n + 40 - 3n$
We get: $= 2n - 2 = 40$
Nextly, let's $add$ by the number $2$ on each of your sides
$2n - 2+2$ $= 40 +2$
$40 +2$ $=42$
We get: $2n$ $=42$
Thirdly, $divide$ by $2$ on each of your side
$\frac{2n}{2}$ $=$ $\frac{42}2}$
Cancel: $\frac{2n}{2}$
Keep: $\frac{42}{2}$ because it gives you your overall answer
$\boxed{Answer: n = 21}$

Good luck on your assignment and enjoy your day!

~ $\bold{LoveYourselfFirst:)}$

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2 years ago