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IrinaK [193]
3 years ago
15

How many reflection symmetries does a five-pointed star have?

Mathematics
1 answer:
RSB [31]3 years ago
8 0

Answer:

a 5-point star has rotational symmetry. A 5-point star is a two-dimensional polygon in the shape of a star with five points, or tips.

So symetry will have a total of 360 degrees, then if you divide it by 5 ( the number of point in the star) you will get 72 degrees each so it has 5 reflections

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A pool has some initial amount of water in it. Then it starts being filled so the water level rises at a rate of 6 centimeters p
mariarad [96]

Answer:

that would be inccorect if thats what its asking

Step-by-step explanation:

Because you would divide 20 by 6 and get 3.33

than you would multiply 3.33 by 6 to get an answer of twenty whic means the water level would be incorrect . because it does not match the eqution that the water level would be at 220 by 20 minutes it would atually be at 66.6 cenimeters by 20 minutes .

I need just 1 more brainliest

:)

3 0
3 years ago
If M&lt;1 + M&lt;5 =100<br> Find the measure of &lt;4
egoroff_w [7]

Answer:

Step-by-step explanation:

Angles 1 and 5 are in corresponding positions, so since A and B are parallel to each other, angles 1 and 5 are also congruent.  If they are congruent, then that have the exact same measure.  That means that if the sum of them is 100, each one has a measure of 50 degrees.  

Angle 4 is vertical to angle 1, so that means that angles 1 and 4 are congruent.  If angle 1 measures 50, then so does angle 4.

8 0
3 years ago
You need 250 pieces of wood. justin can hammer 10 1/4 pieces of wood an hour and jason can hammer 9 1/2.how many hours will it t
Brrunno [24]
It will take about 13 hours.

10.25x+9.5x=250
19.75x=250
x=12.65
Round up to 13.
7 0
3 years ago
Help?? I suck in the math field so please help
Romashka-Z-Leto [24]
Hello,
PO²=12²+5²=13²

sin² x= (5/13)²

cos² y=(5/13)²

sin² x=cos² x

8 0
3 years ago
Please help this is due in 30 mins
pantera1 [17]
This is a Rotation !
6 0
2 years ago
Read 2 more answers
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