Geo_Book_Answers
Geo_Book_Answers
Geo_Book_Answers
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Answers</strong> to Exercises<br />
<strong>Answers</strong> to Exercises<br />
11<br />
CHAPTER 11 • CHAPTER CHAPTER 11 • CHAPTER<br />
USING YOUR ALGEBRA SKILLS 11<br />
1. 3<br />
; 3<br />
8 5 <br />
AC<br />
3 D 5 D<br />
2. CD<br />
, C <br />
5 BD<br />
, B<br />
8 BC<br />
8<br />
<br />
13<br />
3a. 3<br />
1 <br />
9<br />
3b. 1<br />
4. a 6<br />
5. b 16<br />
6. c 39<br />
7. x 5.6<br />
8. y 8<br />
9. x 12<br />
10. z 6<br />
11. d 1<br />
12. y 5<br />
13. 318 mi<br />
14. 2.01<br />
15. 12 ft by 15 ft<br />
124 ANSWERS TO EXERCISES<br />
16. almost 80 years old<br />
17a. true<br />
17b. false; 3<br />
<br />
6<br />
1 ,but<br />
2 3 1 6 2<br />
17c. true<br />
17d. true<br />
17e. false; 3<br />
<br />
6<br />
1 ,but 3 <br />
2 2<br />
1<br />
6 <br />
17f. true<br />
18a. arithmetic: 10, 25, 40, 65; geometric: 10, 20,<br />
40, 80 or 10, 20, 40, 80<br />
18b. arithmetic: 2, 26, 50, 74; geometric: 2, 10, 50,<br />
250 or 2, 10, 50, 250<br />
18c. arithmetic: 4, 20, 36, 52; geometric: 4, 12, 36,<br />
108 or 4, 12, 36, 108<br />
19a. Add the numbers and divide by 2.<br />
19b. Possible answer: Multiply the numbers and<br />
take the positive square root of the result.<br />
19c. c ab; This formula holds for all positive<br />
values of a and b.<br />
19d. c 2 • 50 100 10;<br />
c 4 • 36 144 12
Change language