| 1. |
Population of Austin, Texas - count and estimate |
| 2. |
Position of a song - ordering and exact |
| 3. |
The distance traveled by a home-run ball - measure and estimate |
| 4. |
A score on a science true-false quiz - count and exact |
| 7. |
Rainfall - continuous |
8. |
Attendance at a football game - discrete |
| 14. |
Answers will vary |
15. |
100% |
| 16. |
50% |
7. |
| -3 | = 3 |
| 8. |
| 4.3| = 4.3
|
9. |
| -0.6 | = 0.6 |
| 10. |
| -17 | = 17
|
11. |
-5 + 17 = 12 |
| 12. |
-22 + 9 = -13 |
13. |
15 + (-16) = -1 |
| 14. |
4 - (-1) = 5 |
15. |
-7 - 29 = -36 |
| 16. |
33 - (-33) = 66 |
17. |
12 - 12 = 0 |
| 18. |
19 + (-23) = -4 |
27. |
-5 + (-3)(4) -7 = -24 |
| 28. |
15 - (-9 + 4) -2 = 18 |
29. |
-7 - 6(5-17) = 65 |
| 39. |
5-c when c = -12; 17 |
40. |
(-p - 13)/4 when p = -6;-7/4 |
| 41. |
x2 - 3 when x = 4; 13 |
42. |
-y2 + y when y = -2; -6 |
| 1. |
5.67 • 105 |
2. |
4.58 • 10 |
| 3. |
1.9 • 10-3 |
4. |
5.96 • 10-2 |
| 5. |
7.0 • 109 |
6. |
8.4 • 10 |
| 13. |
.00362 |
14. |
58,000,000 |
| 15. |
6,430 |
16. |
19.8 |
| 17. |
0.0307 |
18. |
0.0000095 |
| 22. |
3.6 • 105 |
23. |
5.4 • 10-7 |
| 24. |
5 • 1010 |
25. |
1.2 • 10-11 |
| 26. |
8 • 100 |
27. |
1.68 • 10-1 |
| 28. |
5.76 • 106 |
29. |
2.88 • 10-7 |
| 9. |
PK = 9 |
10. |
KL = 20 |
| 11. |
Yes, PK = KQ |
12. |
Perimeter of triangle JKL = 83 |
| 1. |
9x2 |
2. |
30ab |
| 3. |
-14pq |
4. |
15n2 |
| 5. |
8r3 |
6. |
48t3 |
| 14. |
perimeter is 16n
area is 15n2 |
15. |
perimeter is 14v + 8
area is 28v |
| 22. |
2x + 5x+ 4x+x = 12x
(12x)° |
23. |
2y+5y+(90-y)+180-2y)+5y=
(9y + 270)° |