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____ [38]
2 years ago
15

Select all the sequences of transformations that always maintain congruence. a reflection and then a translation a translation a

nd then a rotation a rotation and then a reflection a dilation and then a reflection a rotation and then a dilation a translation and then a dilation
Mathematics
1 answer:
oee [108]2 years ago
6 0
A reflection followed by translation, a translation followed by rotation, and a rotation followed by reflection all preserve congruence.

Anything that changes the size of the figure does not preserve congruence.  The other three choices all have a dilation in them; a dilation changes the size of a figure.  Therefore it does not preserve congruence.
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Given that, suppose we want to choose 5 objects, without replacement, from 15 distinct objects.

<h3>What is a permutation?</h3>

A permutation is a mathematical calculation of the number of ways a particular set can be arranged, where the order of the arrangement matters.

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