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