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OpenStudy (anonymous):
What is the sum written in scientific notation? 3.7 x10^20 + 4.45 x10^20
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OpenStudy (welshfella):
just add the 3.7 and 4.45 The exponent part stays the same because this s um is less than 10
OpenStudy (dyna-marie99):
8.15x10^20
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