Solve the system of linear equations by elimination. 2x – y=0 3x – 2y = -3
1 answer:
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Answer:
A. Both rotational and reflectional.
Step-by-step explanation:
We have been given an image of a regular polygon. We are asked to determine type(s) of symmetry for our given polygon.
Upon looking at our given polygon, we can see that it is a pentagon.
We know that a regular pentagon has five equal sides and five lines of symmetry.
We can see that each line of symmetry divides pentagon into two mirror images, therefore, our given pentagon has reflectional symmetry.
We know that the regular polygon has a rotational symmetry. We can find rotational symmetry of a regular polygon by multiplying 360 degrees by number of sides.
Therefore, a regular pentagon has rotational symmetry.
Answer:
Diego playlist has 36 songs in rock genre, 9 songs in Country genre, 27 songs in hip hop genre and 24 songs in electronica genre.
Step-by-step explanation:
Given:
Total Songs on playlist = 90
rock = 40%
country = 10%
hip hop = 30%
rest is electronica.
We need to find the number of songs in each genre.
rock = 40%
So Number of songs in rock genre =
country = 10%
So Number of songs in country genre =
hip hop = 30%
So Number of songs in hip hop genre = .
and rest is electronica genre.
Number of songs in electronica genre can be calculated by Subtracting Number of songs in rock genre and Number of songs in country genre and
Number of songs in hip hop genre from Total number of songs.
framing in equation form we get;
Number of songs in electronica genre =
Hence Diego playlist has 36 songs in rock genre, 9 songs in Country genre, 27 songs in hip hop genre and 24 songs in electronica genre.