1) Astronomical distances: The distance from the Earth to the sun is approximately 93 million miles. In scientific notation, this is can be written as: a) 9.3 x 107  b) 9.3 x 106 2) 23200 a) 2.32 x 104 b) 23.2 x 103 3) Mr. Andrie class is studying the solar system. The circumference of the Earth at the equator is 24900. Write in scientific notation. miles. Express this number in scientific notation. a) 0.000249 b) 2.49 x 104 4) The distance to the moon is 238,900 miles. Write this value in scientific notation. a) 2.389 x 105 b) 2.389 x 106 5) 9.99 x 102 a) .0999 b) 999 6) 723000 a) 7.23 x 103 b) 7.23 x 105 7) The age of the Earth is roughly 4,560,000,000 years. Write this in scientific notation. a) 4.56 x 10-9 b) 4.56 x 109 8) 10 a) 1.0 x 10 b) 1.0 x 10-1 9) 82780000000 a) 8.278 x 1010 b) 8278 x 1010 10) The speed of light is approximately 6.71 x 108 miles per hour. Express this in standard form. a) 671000000 b) 67100000

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