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Algebra Ch9.2 #4
Question from Renee, Please confirm the correct answers for Chapter 9 Lesson 2 on page 403--Problem number 4 (a-f). Answers seem wrong in the answer key. Seems to me they should all be "yes" except "d." Am I wrong? Answer: In this problem, you are being asked whether...
Geometry Ch 14.5 #12
Question from Daniel, Would you explain problem 12 from lesson 14.5? How exactly do you calculate circular inches? Answer First, a circular inch is the amount of area taken up by a circle one inch in diameter. So that makes one circular inch = Area = pi*(d/2)^2...
Geometry Ch. 14.2 #16
Questions from Teresa, I'm in Jacobs Geometry, Chapter 14, Lesson 2. The answer to problem 16 is 9 sin 20 degrees. How do you get that answer? Answer: First, from #15 you see we count 9 sides. So, n=9. For #16, based on the formula from Theorem 75 on page 581 N =...
Algebra 1 Negative Numbers and Parenthesis
Question from Blake: Can you help me see why parenthesis and negative numbers matter together? Answer from Cassidy: Blake, I've made you a comparison problem to hopefully show why parenthesis matter with negative numbers. Can you see that in 1) the negative sign is...
Geometry Ch3.4 #36
Question from Luke: In Jacob's Geometry Chapter 3, Lesson 4, Number 36 - Something seems wrong with the proof? Help? Answer from Cassidy: Yes Luke - good call! It has a typo in line 3 of the proof. It should say PC besects <APB.
Geometry Ch1.1 #21
Question from George: In Jacob’s Geometry, Chapter 1, Lesson 1, Number 21, I get AG. How is that not the answer? Answer from Cassidy Cash: Typo in the book ALERT. You are correct! The answer should include as an answer AG instead of AC. Good call! 🙂
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