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Numbers and Their Application to Math and Science
Odd Solutions for HW Numbers Lesson 9
- Using your calculator result for 69! in scientific notation,
multiply 69! by 7 and approximate 70!
A. 1.197857167E99 × 10 = 1.197857167E100
Round off each of these measurements to the number of significant figures shown in parentheses
and write your answer in scientific notation.
-
- 0.001775 m (2)
A. 1.8×10-3 m
-
- 8792 m (2)
A. 8.8×103 m
-
- 4.3621 ×108 m (1)
A. 4×108 m
Do the following operations and give the answer to the correct number of significant
figures.
-
- 61.2 m + 9.35 m + 8.6 m
A. 79.2 m
-
- 1.36 m + 10.17 m
A. 11.53 m
-
- 2.10 m × 0.70 m
A. 1.5 m
-
- 0.365 m ÷ 0.0200
A. 18.3 m
-
- 5.3 × 10-2m ÷ 0.255
A. 2.1×10-1 m = 0.21 m
-
- Identify the exponent for the power of ten multiplier
for each of the following metric prefixes. (Hint: they are
in order and all the missings ones are multiples of three.)
| Prefix | times 10^? |
| tera- | 12 |
| giga- | 9 |
| mega- | 6 |
| kilo- | 3 |
| deci- | -1 |
| centi- | -2 |
| milli- | -3 |
| micro- | -6 |
| nano- | -9 |
| pico- | -12 |
| femto- | -15 |
| atto- | -18 |
-
- Factor: 4x2 + 7x + 3 = (4x + 3)(x + 1)