Wednesday, May 26, 2010

Algebra 2H pds 1,2
We learned about Combination problems-these are the ones in which the order of the elements chosen do NOT matter. The formula is: C(n,r)= n!/((n-r)!r!).
HW Worksheet # 1-10 all
Also, there will be a short quiz tomorrow on the Counting Principle, Linear Permutations, Circular Permutations, and Combinations.

EC problem...How many baseball teams of 9 members can be formed from 14 players?

Geometry H pds 3,5
After going over the hw on Cones, we learned the formulas for the area and volume of a sphere. Spheres do NOT have Lateral Area.
HW Worksheet # 1-9 all
EC problem #14.

Math Analysis pd 4
We learned how to find the inverse of a 2x2 matrix. You can use 2 variable equations to solve for each number, or you can learn the formula, which is:
1/determinant times (d -b)
(-c a).
HW Worksheet 3 7,8, 12-15 all, 29, and 33. Check #15,29, and 33.
EC problem #34-Check your answer as shown during class.

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