Asked by Alice
Evaluate the expression.Express the result in scientific notacion:
(7.1x10^5)-(4.3x10^2)
(7.1x10^5)-(4.3x10^2)
Answers
Answered by
Steve
First, you have to have the same power of 10, so
4.3x10^2 = .0043x10^5
Now subtract the coefficients to get
(7.1-.0043)x10^5 = 7.0957x10^5
4.3x10^2 = .0043x10^5
Now subtract the coefficients to get
(7.1-.0043)x10^5 = 7.0957x10^5
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