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domenicabravo19 domenicabravo19
  • 27-10-2015
  • Mathematics
Answered

Write your answer in scientific notation.

6.410^3+1.410^4+7.510^3


4.210^6-1.210^5-2.510^5
helpppppp

Verified Answer :

hanvoldj
hanvoldj hanvoldj
  • 27-10-2015

When you add in scientific notation, all powers if ten have to be the same. In the first equation, just change the 1.4•10^4 into 14•10^3, then add the coefficients
6.4+14+7.5=27.9•10^3
Your answer should be chaged to 2.79•10^4 to keep it in correct scientific notation.
The second problem is dont the exact same way, just subtract

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