ICTM State 2017 Algebra 2 Part 1: #9 & #15
In this video, the Math Record covers questions 9 and 15 in the ICTM 2017 Division AA: Algebra 2. Question 9 deals with system of equations and Question 15 deals with probability.
In most encounters, I believe most people generally have more problems with probability and combinations / permutations than most topics. My advice for combinations / permutations is to always think about size. Usually, a smaller size means combinations while a larger size means permutations since order matters. For probability, try to think about arrangements and possibility separately. Try to find the amount of ways to order something then find the probability that something occurs.
---------Timestaps---------
Question 9: 0:22
Question 15: 4:00
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