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Mathematics, 23.09.2019 12:30 dangelovasquez32

Adinosaur fossil is 91,910,000 years old. how can you express this age in scientific notation with the highest level of precision?
a. 9x10^7
b. 9.2x10^7
c. 9.191x10^7
d. 9.19x10^7

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