This is a question from IXL. I need help! ASAP thanks
1 answer:
The image of triangle CDE after a rotation of 90º counterclockwise around the origin is graphed at the end of the answer.
<h3>What is a rotation?</h3>When a polygon undergoes a rotation, this rotation is over an angle measure, that defines the coordinate rule for each vertex of the polygon.
For triangle CDE, the vertices are given as follows:
D(-7,-1), C(-7,-7), E(-4,-8).
The rule for a rotation of 90º counterclockwise around the origin, for each vertex (x,y) of the polygon, is given by:
(x,y) -> (-y,x).
Hence, applying the rule above, the vertices of the image of triangle CDE will be given as follows:
D'(1,-7), C'(7,-7), E'(8,-4).
The triangle, with these vertices labeled, is graphed at the end of the answer.
More can be learned about rotations at brainly.com/question/28794840
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Joel has 59 songs on his MP3 player he equally divides them 7 groups how many songs will be in each group
Total number of songs = 59
We need to divide them into 7 groups
so we divide 59 by 7
Round the answer to nearest whole number
so 8.42857 rounded to 8
So 8 songs in each group
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