Predict the display the calculator would give for the expression shown in each screen.65. 66.
67. 68.
45. 46.
47. 48.
49. 50.
51. 52. 53.
54. 55. 56.
57. 58. 59.
60. 61. 62.
- 5 * 10 -^6
- 2 * 102
- 8 * 10 -^4
- 4 * 103
- 7.2* 103
6.0* 10 -^1
- 4.5* 104
1.5* 10 -^2
3 * 109
6 * 105
4 * 105
8 * 102
9.5* 10 -^1
5 * 103
2.6* 10 -^3
2 * 102
15 * 104
- 3 * 103
8 * 103
- 2 * 102
12 * 10 -^4
4 * 10 -^3
9 * 10 -^5
3 * 10 -^1
19 104217 10 -^7216 104218 10 -^82
16 103214 10 -^2217 105213 10 -^42
13 10 -^421 - 2 1082 14 10 -^321 - 2 1072
SECTION 5.3 An Application of Exponents: Scientific Notation 317
EXERCISES 63– 68Graphing calculators such as the TI-83/84 Plus can display numbers in scientific
notation (when in scientific mode), using the format shown in the screen on the left. For
5400,the calculator displays 5.4E 3 to represent. The display 5.4E- 4 means. The calculator will also perform operations with numbers entered in
scientific notation, as shown in the screen on the right. Notice how the rules for
exponents are applied.
5.4* 10 -^4
5.4* 103
TECHNOLOGY INSIGHTS
Brain Busters Use scientific notation to calculate the answer to each problem. Write
answers in scientific notation.