Asked by sal fisher

The diameter of Mars is about 6.8 X 103
kilometers. The diameter of Earth is about 1.2763 X 104
kilometers. About how much greater is Earth's diameter than the diameter of Mars? Please answer in scientific notation.
Responses
A 5.963 X 103
kilometers5.963 X 103 kilometers
B 5.963 X 107
kilometers5.963 X 107 kilometers
C 59.63 X 103
kilometers59.63 X 103 kilometers
D 5.963 X 104
kilometers5.963 X 104 kilometers
Answered by sal fisher
The diameter of Earth is 7.9175×103 miles.

How is 7.9175×103 written in standard notation?
Responses
A 0.00791750.0079175
B 79.17579.175
C 7,917.57,917.5
D 79,175
Answered by sal fisher
A factory builds a new warehouse that is approximately 1.28 X 105
square feet. Later, they add on 1.13 X 103
more square feet for offices. Use scientific notation to write the total size of the new building. Write the number in scientific notation.
Responses
A 1.2913 X 102
square feet1.2913 X 102 square feet
B 129,130 square feet129,130 square feet
C 129.13 X 102
square feet129.13 X 102 square feet
D 1.2913 X 105
square feet
Answered by sal fisher
Express the number in scientific notation.

63,600,000
Responses
A 6.36 x 10 76.36 x 10 7
B 6.36 x 10 -76.36 x 10 -7
C 63.6 x 106
63.6 x 10 6
D 636 x 10 5
Answered by sal fisher
Pluto is considered to be a dwarf planet in our Solar System. Pluto is about 3.6 X 109
miles from the Sun. Mercury is about 3.6 X 107
miles from the Sun. About how many times farther from the Sun is Pluto than Mercury?
Responses
A 1 X 1015
1 X 1015
B 1 X 10 0
1 X 10 0
C 1 X 10 2
1 X 10 2
D 1 X 10 −2
Answered by sal fisher
The width of a human hair is 0.003937 inches.

How is this number written in scientific notation?
Responses
A 3.937 x 10-43.937 x 10 -4
B 3.937 x 10-33.937 x 10 -3
C 3.937 x 10-63.937 x 10 -6
D 3.937 x 103
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