Identify the classification system that corresponds to each description. Uses numbers:
Uses letters:
Used internationally:
Used mainly in U. S. colleges and universities:

answers,,

Library of congress system

Dewey Decimal System

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.