Geometry Ch5.1 #26-31

by | Oct 10, 2014 | Geometry

Question from Wyatt: I am not understanding Chapter 5 lesson 1  problems 26-31.Wyatt  Answer from Dr. Callahan:  Given the figure   And that you are GIVEN AB < BC < CD < DE #26 – AB < CD  and BC < DEThis is true. Transitive #27 – AB + BC...

Geometry Ch1 Review #9

by | Oct 10, 2014 | Geometry

Question from Macey: I am stuck on problem 9 in Review 1.  Can you please explain how I would get 9?    Answer from Dr. Callahan: Macey, This is a common problem. It is asking in how many lines do the edges of the pattern lie.  LM JP WQ UT JW LU MT OR (This is the one...

Geometry Ch3.6 #11

by | Oct 8, 2014 | Geometry, Geometry Chapter 3

Question from Kimberly: p. 113 “Sun Directions”Says, “If a circular protractor…the coordinate of OA is 50.”What are we missing?  Seems like it should be 45, not 50.   Answer from Dr. Callahan: This is a given – not a question. This...

Algebra Ch13.6 #9h – Completing the Square

by | Oct 1, 2014 | Algebra

Question from Cynthia: Algebra I Chapter 13 Lesson 6 Problem 9 h. If we follow the books example on page 632 we get the correct answer. If we try to use your DVD’s formula for this lesson we can not get it to work out at all. Answer from Dr. Callahan Yes, this...

Algebra II with Trig Ch1.3 #73

by | Sep 19, 2014 | Algebra II with Trig

How do we work Algebra II with Trig Chapter 1.3 #73?     Solution a) Area after purple section cut out A = (20 times 20) – 4(x^2) = -4x^2 + 400 = -4(x^2 – 100)  = -4(x + 10)(x – 10) b) V = Area of bottom times height = (20-2x)(20-2x) x =...
0