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notka56 [123]
3 years ago
10

For which regular polygon is 30 degrees the smallest angle of rotational symmetry?

Mathematics
2 answers:
Natasha2012 [34]3 years ago
5 0

Answer:

the answer is D

Step-by-step explanation:

eduard3 years ago
4 0
<h3>answer.</h3>

•given that is smallest angle of rotational symmetry for a regular polygon is 30

•we have to find the number of side does the regular polygon have

•if we can rotate of figure around a center point be fewer than 360° and the figure appears and change then the figure has the rotation symmetry

<h3>Hence,12 number of sides the polygon.</h3>

no. of side= 360/ smallest angle at centre=12

<em>I hope</em><em> </em><em>it's </em><em>help</em>

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klasskru [66]

Answer:

-7 is bigger

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I guess I didn't understand the question

8 0
3 years ago
3. solve (-7) + b = (-11)
sveta [45]
B= -4 hope this helps!!!
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3 years ago
forty percent of participants in a math contest were boys. fifty percent of the boys revived medals. the number of boys who rece
aleksklad [387]

20% of the participants are girls and got a medal, and 33% of the girls got a medal.

<h3>What percent of the participants were girls who received medal?​</h3>

First, we know that 40% of the participants were boys, so the other 60% were girls.

We know that 50% of the boys got a medal, so the percentage (in decimal form) of participants that are boys and got a medal is:

P = (0.4)*(0.5) = 0.2

So, 20% of the participants are boys and got a medal.

We know that the number of girls that got a medal is the same as the number of boys, then we also have that 20% of the participants are women who got a medal.

Then if the percentage of girls that got a medal is x (in decimal form), we must have that:

Q = (0.6)*(x) = 0.2

      x = 0.2/0.6 = 0.33

x = 0.33

This means that 33% of the girls got a medal.

If you want to learn more about percentages:

brainly.com/question/843074

#SPJ1

3 0
2 years ago
The vertices of quadrilateral MNPQ are M(−3,−2),N(−1,4),P(2,4), and Q(4,−2). Translate quadrilateral MNPQ using the vector ⟨3,−4
muminat

Answer:

see explanation

Step-by-step explanation:

A translation using the vector < 3, - 4 > , means

Add 3 to the x- coordinate and subtract 4 from the y- coordinate, so

M (- 3, - 2 ) → M' (- 3 + 3, - 2 - 4 ) → M' (0, - 6 )

N (- 1, 4 ) → N' (- 1 + 3, 4 - 4 ) → N' (2, 0 )

P (2, 4 ) → P' (2 + 3, 4 - 4 ) → P' (5, 0 )

Q (4, - 2 ) → Q' (4 + 3, - 2 - 4 ) → (7, - 6 )

4 0
3 years ago
I need to know what y is equal to. <br> 3/4 = 5/6 + y
irina1246 [14]
Well let’s make it a decimal.

.75 = .84 + Y

So if .84 is more than .75 then subtract
.75 from .84 and you have your answer then convert to fraction
7 0
3 years ago
Read 2 more answers
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