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OpenStudy (anonymous):
Miranda is adding the numbers below. 2.9 * 10^10 + 5.35 * 10^10 What is the sum written in scientific notation? A. 8.25 * 10^20 B. 82.5 * 10^-11 C. 8.25 * 10^10 D. 82.5 * 10^11
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OpenStudy (anonymous):
C
OpenStudy (anonymous):
since they are the same powers, just add the coeficients
OpenStudy (anonymous):
2.9+5.35=8.25
OpenStudy (anonymous):
8.25*10^10
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