Posted by Nick on Monday, April 4, 2011 at 9:26pm.
to do this, first we multiply the 1st terms or the number with no exponent (not the terms with 10 raised to an exponent). thus:
4.3*2 = 8.6
now we multiply the 2nd terms,, recall that if they have the same base (here, the base is 10) we can simply add the exponents:
10^3 * 10^-8 = 10^(3-8) = 10^(-5)
now multiplying the answers we got:
8.6 * 10^(-5)
hope this helps~ :)
4.3*10^3 * 2*10^-8=
4.3*2*10^3*10^-8=
8.6*10^[3+(-8)]=
8.6*10^(3-8)=
8.6*10^-5=
8.6/10^5=
8.6/100,000=
0.000086
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