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# Course 2, Lesson 42, Repeating Decimals

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Author: Hector Soto
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1. Look for and make use of structure. 2. Look for and express regularity in repeated reasoning. 3. Represent proportional relationships by equations. 4. Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure. 5. Understand that the probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring. Larger numbers indicate greater likelihood. A probability near 0 indicates an unlikely event, a probability around 1/2 indicates an event that is neither unlikely nor likely, and a probability near 1 indicates a likely event. 6. Approximate the probability of a chance event by collecting data on the chance process that produces it and observing its long-run relative frequency, and predict the approximate relative frequency given the probability. 7. Develop a uniform probability model by assigning equal probability to all outcomes, and use the model to determine probabilities of events.

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## Repeating Decimals

Source: Deanna Ray