Week Five

Algebra 2H pd 1
We learned how to use the ln (natural logarithm) key in solving word problems involving growth and decay. Since ln e = 1, this makes the equations much easier to solve on the calculator.
HW Worksheet # 1,2,4,5
EC problem.....Find the decay constant of a radioactive isotope if a 20 gram sample remains from a starting 98 gram amount after 2 years.

Geometry H pds 2,4
We started one of the most important geometry lessons for this semester-learning how to figure out the missing sides of 45-45- 90 and 30-60-90 right triangles. ALL of you must learn the formulas!!!!
HW page 302 # 2-26 evens.
EC problem....Using the formulas from today's lesson, find the perimeter of a square if its diagonal is 68 cm.

Algebra 2B pd 5
Today's worksheet on solving log equations will be collected and graded like a quiz.
Hope all of you do a great job on it!