Lesson 1-1 Homework Answer Key
Assignment: (pg. 6-7) Lesson 1-1 #1-31 odd, 39
1. 1231
3. D.0.25
5. A.0.5
7. 0.75
9. −0. 6
11. 0.2
13. −0. 36
15. 0. 6
17. 1.0625
19. −2.16
21. 0.416
23. . 333; .250
25. 33100
27. 41125
29. 120
31. 7825
39. A.0.125
Lesson 1-1b
Homework Answer Key
Assignment: Practice Problem Worksheet
1. 59
2. 29
3. 833
4. 533
5. 15111
6. 94333
Lesson 1-2 Homework Answer Key
Assignment: (pg.12-13) Lesson 1-2 #1-4 all, 5-27 odd, 31, 35, 43, 46
1. Irrational number, real number
27. Irrational; 40 is not a perfect square
2. Rational number, real number
31. 88 feet
3. Rational number, real number
35. 10
4. Rational number, real number, perfect square
43. B. 12.2 cm
5. 2 and −2
46. 0.75
7. 10 and −10
9. 7 and −7
11. !! and − !
!
13. !! and − !
!
15. 3
17. −11
19. 55
21. 10.3
23. 342 meters per second
25. 370 meters per second
Lesson 1-3 Homework Answer Key
Assignment: (pg.16-17) Lesson 1-3 #1-8 all, 9-15 odd, 18, 19, 21, 25, 29, 31, 37, 38
1. 8 inches; the side length of a cube is the cube root of its volume: 512! = 8
25. 9
2. 9
29.
3. 0
31. The student reduced the fraction and then forgot to find the cube root.
4. −2
37. 4.2
5. 110
38. 5.5
6. 7
7. 1
8. −3
9. 15
11. 27
13. 5
15. 35
18. 2 inches
19. !! foot
21. 0.6
Lesson 1-4 Homework Answer Key
Assignment: (pg. 22-23) Lesson 1-4 #1, 3-14 all, 20, 26, 29
1. 13 is the hypotenuse because it is the longest side.
3. 17 cm
4. 7.2 in
5. 7.1 in
6. 8.1 in
7. 5
8. 15
9. 25
10. 7.8
11. 17.8
12. 28.4
13. 14.04 ft
14. 24 cm
20. 2.3 km
26. F. 0.375
29. −8
Lesson 1-5 Homework Answer Key
Assignment: (pg. 29-30) Lesson 1-5 #3-12 all, 14-16 all, 22 to 28 all
3. 16 in
24. C. 300 yd
4. 5.3 m
25. <
5. 6.7 ft
26. >
6. 8.7 in
27. <
7. 10.9
28. >
8. 24
9. 17.1
10. 5.8
11. 14.7
12. 10.2
14. Area ≈ 129.6 in
15. 6 units2
16. ≈ 21.9 units2
22. B. 7 ft
23. G. 3
Lesson 1-6 Homework Answer Key
Assignment: (pg. 33-34) Lesson 1-6 #2-7 all, 9-20 all
2. Yes, the sum of the two shorter lengths is greater than the longest length.
18. No, 5! + 13! ≠ 14!
3. No, the sum of the two shorter lengths is not greater than the longest length.
19. Yes, 8! + 15! = 17!
4. No, the sum of the two shorter lengths is not greater than the longest length.
20. No, 7! + 24! ≠ 26!
5. Yes, the side lengths satisfy the Pythagorean Theorem
6. Yes, the side lengths satisfy the Pythagorean Theorem
7. No, the side lengths do not satisfy the Pythagorean Theorem
9. No, 2+ 4 < 7
10. No, 1+ 5 = 6
11. Yes, 15+ 25 > 35
12. Yes, 3.8+ 5.2 > 8.5
13. Yes, 4 !!+ !
!> 5
14. No, 22+ 44 = 66
15. Yes, 12! + 16! = 20!
16. Yes, 8! + 31.5! = 32.5!
17. No, 10! + 12! ≠ 16!
Lesson 1-7 Homework Answer Key
Assignment: (pg. 39-40) Lesson 1-7 #1-4 all, 8-11 all, 15, 21, 22, 23, 24, 26
1. B. Quadrant II
2. A. Quadrant I
3. D. Quadrant IV
4. C. Quadrant III
8. ≈3.2 units
9. ≈7.3 units
10. ≈6.3 units
11. ≈6.4 units
15. ≈17.2 units
21. D. 31 mi
22. J. 10 mi, 24 mi, 25 mi
23. C. 70 ft
24. 7.1
26. 2.6