The state of Colorado covers about 1.04 x 105 square miles. The Indian Ocean covers about 2.808 x 107 square miles. How many times bigger than Colorado is the Indian Ocean?
2.7 x 102 times bigger
200
6.84 x 10-7
0.000000684
200
0.0000053
5.3 x 10-6
200
(9.4 x 1015) - (3.1 x 1015)
6.3 x 1015)
200
(1.2 x 104)(4.1 x 104)
4.92 x 108
200
The population of the United States is 4 x 108 and the population of the world is 8 x 109. How many times larger is the population of the world?
2 x 101 times larger
300
7 x 108
700,000,000
300
75 billion
7.5 x 1010
300
(1.5 x 10-5) + (5.1 x 10-7)
1.551 x 10-5
300
(8 x 10-4)/(5 x 10-4)
1.6
300
A particle of dust has a mass of 7.53 x 10-10 kilograms. Find the weight of 5 billion dust particles.
3.765 kilograms
400
6.36 x 10-2
0.0636
400
0.00000502
5.02 x 10-6
400
(6.63 x 105) - (1.23 x 104)
6.507 x 105
400
(3.8 x 10-6)(3 x 109)
1.14 x 104
400
A rectangular section of wilderness will be set aside as a new wildfire refuge. The dimensions are 5 x 105 meters by 4 x 104 meters. Find the area of the land in square meters.
2 x 1010 square meters
500
8.747 x 102
847.7
500
4,003,005,000
4.003005 x 109
500
(9.2 x 102) - (9.2 x 10-2)
9.19908 x 102)
500
(5.3 x 10-6)/(4.5 x 10-3)
1.17(rep) x 10-3
500
When writing a number in scientific notation, the _________ should be between ____ and ____, with a power of ______. Give one example and one nonexample.
coefficient, 1, 10, 10.
Ex. 5.67 x 105
Non. 56.7 x 104