# Intermediate Algebra 2 Assignment for 4/20

The instructions for today’s activity can be found here.

Your test on Unit 8 will be on Tuesday, April 24. Your first review assignment can be found here.

Also, many of you did not complete the IXL assignment from Thursday night. For shame! Please work on that this weekend. If you are having technical issues, please let me know. Don’t use that as an excuse to blow off this assignment!

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# Intermediate Algebra Assignment for 4/19

The instructions for today’s activity can be found here.

Your test on Unit 8 will be on Tuesday, April 24th. We will spend tomorrow (Friday) and Monday reviewing for this test. Tonight for homework, choose any two of the IXL modules posted below and get your score up to at least an 80.

Remember: your IXL username is your first initial and your last name, followed by “1@ithaca” and your password is “abc123” (some of you have a slightly different username, please email me or post here if you have trouble logging in).

# Intermediate Algebra 2 Assignment for 4/18

Today, we reaffirmed that the Expected Value is a long-term average. Meaning the results of a small handful of trials are unlikely to produce the same average as the expected value, however increasing the number of trials will produce averages more in line with what you expect.

# Intermediate Algebra Assignment for 4/16

We’ve introduced the last major topic from our unit on Statistics: the Expected Value. This quantity is a long-term per-trial average, that gives you a way of determining what a typical outcome of a handful of trials should be. This is an important tool in the field of statistics, and will be something you’ll see again in later math classes.

# Intermediate Algebra 2 Assignment for 4/13

We’re starting in on the second part of the unit today, about Probability Models. These are ways of listing/organizing all the outcomes of a random trial and their, often unequal, probabilities. This will be the basis for one of the most useful tools in statistics: the expected value.

# Intermediate Algebra 2 Assignment for 4/10

Permutations and combinations tend to be tricky to figure out when you first encounter them, so we spent some more time looking at examples, including a modification to the concept to find arrangements of letters in a word.

# Intermediate Algebra Assignment for 4/6

The next part of the “counting” part of this unit is understanding the difference between two common patterns of counting: permutations and combinations. In brief, permutations are used to count the number of arrangements of objects, specifically when order matters like with ranked lists, unique assignments, or sequences. Combinations are used to count the number of groups of objects, specifically when order doesn’t matter like with committees or batches.

# Intermediate Algebra Assignment for 4/5

Today was a catch-up day. Nothing new was taught, but we reviewed everything we’ve done up to this point (especially independence!)

# Intermediate Algebra Assignment for 4/3

Today we discussed an important idea in probability and statistics: determining when events are independent and/or mutually exclusive.

# Intermediate Algebra Assignment for 4/3

We did some more work with the counting principle today, using it in a variety of applications. The trick is to carefully sort out the number of choices you have to make and the number of options you have for each choice.

# Intermediate Algebra Assignment for 4/2

We started our second-to-last unit today, about tools of probability. Probability is all about chances and odds, determining how likely various events are to occur. We’ve started with some very basic ideas of probability, but we will quickly move to some more complicated and nuanced applications.

# Intermediate Algebra 2 Assignment for 3/21

Your Unit 7 test is tomorrow, covering all of non-right triangle trigonometry (Law of Sines, including the ambiguous case; Law of Cosines; and the trig formula for area).

I will give you the formulas for the Law of Sines, Law of Cosines, and Area formula. Please don’t worry about memorizing them!

Your homework tonight is to finish the Unit 7 Review that you started in class. You can find answers here, so please review these materials in preparation for tomorrow’s test!

# Intermediate Algebra 2 Assignment for 3/20

Your Unit 7 cumulative test, covering all of Law of Sines and Law of Cosines content, will be on Thursday, March 22.

Your homework tonight is one final sheet prioritized to practicing the Law of Cosines: HW 7.11 – Law of Cosines Practice 2

# Intermediate Algebra 2 Assignment for 3/19

We did some more practice with the Law of Cosines today. Tomorrow and Wednesday will be a review of both Law of Sines and Law of Cosines, in preparation for our Unit 7 test on Thursday, March 22

# Intermediate Algebra 2 Assignment for 3/16

As we’ve observed in class, in order to use the Law of Sines, you must know (or be able to find easily) an opposite angle-side pair in the triangle. But what if all you have is two sides and an angle? Is there anything we can do with that? Enter the Law of Cosines, a generalization of the Pythagorean Theorem to non-right triangles.

# Intermediate Algebra 2 Assignment for 3/14

Our mid-unit quiz on the Law of Sines and Sine Formula for Area is tomorrow. You got the Quiz Review in class today and should finish that for homework. Answers can be found here.

Work on some IXL practice, as well, especially the ones that were assigned for homework! You’ll have until tomorrow to boost your grade on those, at which point your grade will be locked in.

# Intermediate Algebra 2 Assignment for 3/12

On Friday, we introduced the “Ambiguous Case” of the Law of Sines. Today, we spent some time working on how exactly one handles that situation.