Assignments for Monday, 4/29/2013

Algebra II:

How could you describe the path of the toy?

Today is a review day for your quiz tomorrow.

·      Parabolas, Circles, Ellipses

Assignment

·      Complete Friday’s worksheet of word problems (Answer Key here)

·      Do Quiz Review worksheet (Answer Key here)

Schedule

Tue – Quiz 10:1-4

Wed – 10-5 Hyperbolas

Thu – Test Review

Fri – C10 Test

Discrete Math

In the excellent Monoface (external site), we can change the head, left and right eyes, nose and mouth of some zany guys who work at momo-1.com. We are told that there are 759,375 possible faces. Where does this number come from? If they were to let us change the chin as well, how many possible combinations would there be?

Today’s Assignment

Do Practice Test

Ask Questions

Test Tomorrow – C12 Counting Methods

Answer

There are 15 people in the photos (I got this by counting the number of heads) and there are 5 different options that you can change (head, left eye, right eye, nose and mouth).

So there are 15×15×15×15×15=15⁵=759,375 combinations

---

If we add another possible event (changing the chin), we have 6 possible options, so the answer is simply: 15⁶=11,390,625 combinations

(from http://www.intmath.com/counting-probability/2-basic-principles-counting.php)