Writ ing Numbers in Scientific Notation

1.27 Write each of the following in scientific notation: 1.29 Which number in each of the following pairs is larger?
a. 55 000 b. 480 c. 0.000 005 a. 7.2 x 103 or 8.2 x 102 b. 4.5 x 10-<~ or 3.2 x 10- 2
d. 0.000 14 e. 0.0072 f. 670 000 c. I X 10″ or I X 10-4 d. 0.000 52 or 6.8 X 10- 2
1.28 Write each of the following in scientific notation: 1.30 Which number in each of the following pairs is smaller?
a. 180 000 000 b. 0.000 06 c. 750 a. 4.9 x 10-3 or 5.5 x 10-9 b. 1250 or 3.4 x 102
d. 0.15 e. 0.024 f. 1500 c. 0.000 000 4 or 5.0 X I o2 d. 2.50 X 102 or 4 X I 05