News & Resources
Calculus Ch2.2 Test 1 #7
Question from Carl: The question on the test has one slight variation from the book: f (x) = x if -1< x<1 the text book showsf (x) = x if -1< x<1 Please clarify if the teacher syllabus is incorrect. We're finding it is not...
TI Calculator Emulators
Texas Instruments (TI) are our calculators of choice. There are many other great companies - so this is a personal preference. Algebra, Geometry, Biology, Chemistry - For these courses, the TI-30 Scientific Calculator is perfect. It is inexpensive and does all you...
Geometry Solutions Manual
Question: What is different from the new Answers to Exercises for Geometry and the Enhanced Teacher’s Guide for Geometry ISBN: 978-0716756071. If I have one, do I need the other? Answer: Either one will do. We stopped selling the Enhanced Teacher’s Guide for...
Calculus Ch2.2 #4
The answers are not given in the book since this is even, so here they are: a) 3 b) 4 c) 2 d) does not exist e) 3
Algebra II with Trig Ch5.5 #90 (Correction to solution)
Question from Amelia: Dear Dr. Callahan, I found a place where the answer key for even-numbered problems in Algebra II with Trig is incomplete. In Ch 5 Section 5, problem 90 explains what a photic zone is in lakes or the ocean, and gives the formula I = Io e ^ -kd...
Ch2.8 #18.
Here is a solution for Algebra II with Trig Chapter 2.8 #18. A2T-Ch2.8#18.pdf
Let’s Learn Together!
Nulla quis lorem ut libero malesuada feugiat. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus suscipit tortor eget felis porttitor volutpat. Donec rutrum congue leo eget malesuada. Proin eget tortor risus.