Question 5.6.7: Converting from Scientific Notation to Decimal Notation Writ......

A Survey of Mathematics with Applications [1175400]

Converting from Scientific Notation to Decimal Notation

Write each number in decimal notation.

a) The average distance from Mars to the sun is about 1.4 × $10^8$ miles.

b) The half-life of uranium-235 is about 4.5 × $10^9$ years.

c) The average grain size in siltstone is about 1.35 × $10^{-3}$ inch.

d) A millimicron is a unit of measure used for very small distances. One millimicron is about 3.94 × $10^{-8}$ inch.

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a) 1.4 × $10^8$ = 140,000,000

b) 4.5 × $10^9$ = 4,500,000,000

c) 1.35 × $10^{-3}$ = 0.00135

e) 3.94 × $10^{-8}$ = 0.0000000394

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