### Scribe # ???

**Hi my name is Charlene, you guys might hardly recognize me because this is my first time being scribe. So sorry if my scribe sucks haha. Anyways to start things off I would like to say that today we had a double period class and during those two periods we both had group assignments. The first period worksheet was not a hand in assignment however the second period worksheet was.**

**examples from the first worksheet:**

**1) The last part of your telephone number contains four digits. How many such four-digit numbers are there?**

**10*10*10*10 = 10,000**

**2) How many such four-digit numbers are there if the same digit numbers are there if the same digit cannot be used twice?**

**10*9*8*7 = 5040**

**3) How many four-digit numbers begin with a 2,4 or 0 if the same digit cannot be used over?**

**3*9*8*7 = 1512**

**The second class started off with Mr.K teaching us more about counting and arranging things in a circle.**

**Heres an example from the board:**

**In a circle with three beads you can only arrange it in two ways because even though you switch the beads around it will be the same due to rotating it. In a bracelet (3D world) there is only one way you can arrange three beads because you can flip it over and it will still be the same.**

**Mr K. stated that the the first thing you should do when arranging things in a circle is to put down a reference point(the first thing you put down) and then build around it.**

**umm I guess this is the end of my scribe, sorry its to hard to remember everything else considering the fact that today was full of a lot of things. Anyways the next scribe is.........Abdi (alphabetical order) **

## 0 Comments:

Post a Comment

## Links to this post:

Create a Link

<< Home