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marta [7]
3 years ago
10

Which shapes have rotational symmetry that occurs at 180°?

Mathematics
2 answers:
zmey [24]3 years ago
5 0
- Regular Octagon
- Regular Hexagon
- Square
lapo4ka [179]3 years ago
4 0

It should be regular octagon, regular hexagon, and square

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There are 81 red, blue and yellow
wel

Step-by-step explanation:

Here Given

Total counters = 81

red counters are 9 more than the yellow ones.

And Yellow counter = blue counter

So let the Yellow counter be x and as blue counter and yellow counter are same then blue counter will be also x

And by the question

Red counter = 9 + x

Now

9 + x + x + x = 81

9 + 3x = 81

3x = 81 - 9

3x = 72

x = 72 / 3

Therefore x = 24

Now

Red counters = 9 + 24 = 33

Blue counters = 24

Yellow counters = 24

Hope it helped :)

3 0
3 years ago
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The distance from New York to Chicago is
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You need to find the total miles he traveled then multiply it by 3.
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3 years ago
In a manufacturing process, for every 465 items assembled, 4 are defective. at this rate, if 5,115 items are assembled, how many
7nadin3 [17]
The expected number that will be defective is:
5115\times\frac{4}{465}=44\ items
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3 years ago
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How do I work out -5(-8)
slava [35]
You have to simplify like this (-5)(-8)=40
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DOUBLE CHECKING: I got X=12, and you have to solve for measure K so I got k=42, is this correct? I’ll provide a picture and my e
iragen [17]

×=12

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×=120/10

12

3 0
3 years ago
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