anonymous
  • anonymous
Need to put into scientific notation: 7.0 * 10 negpower4 + 6.2 * 10power2.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
if the answer is 620.0007, then how is that written in sn?
anonymous
  • anonymous
6.200007 * 10^2
anonymous
  • anonymous
So is that your final answer?

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anonymous
  • anonymous
yes, Regis :)
anonymous
  • anonymous
thxs;)
Loser66
  • Loser66
I don't understand, please explain me, @Euler271
anonymous
  • anonymous
hmmm
Loser66
  • Loser66
@satellite73 hmmmm???
anonymous
  • anonymous
scientific notation or the Regis Philbin joke?
anonymous
  • anonymous
\[7\times 10^{-4}\times 6.2\times 10^2\]?
Loser66
  • Loser66
@Euler271 surely the problem.
anonymous
  • anonymous
its just another way of writing it. 6.2 * 10^2 = 6.2 * 100 = 620
anonymous
  • anonymous
\[7\times 6.2=43.4\] and \[10^{-4}\times 10^2=10^{-2}\] so i get \[43.4\times 10^{-2}=.434\]
Loser66
  • Loser66
@satellite73 It's not multiplication, it's addition
anonymous
  • anonymous
and any number can be written this way. number.evertyhingelse * 10^exponent
anonymous
  • anonymous
ooh addition doh then i guess you have to add
anonymous
  • anonymous
true
Loser66
  • Loser66
\[7.0^10^{-4} = 0.0007\\6.2*10^2= 620\\620+ 0.0007= 620.0007 \]why we have *10^2 after them?
anonymous
  • anonymous
it was 6.20007 * 10^2 it's just another way of writing it. onenumber.restofnumbers * 10^exp
Loser66
  • Loser66
don't we have to put it in scientific notation and don't we have to follow significant figures?
anonymous
  • anonymous
the equation is 7.0 x 10^-4 + 6.2 x 10^2
anonymous
  • anonymous
does'nt specify to keep proper sig figs. if that's the case then we'd ignore then 7*10^-4 part
anonymous
  • anonymous
yes, specifically I need to know how to solve as sn
anonymous
  • anonymous
so, your final answer still stands, Meredith? dith?
anonymous
  • anonymous
I want to put this to rest, so is 6.20007 x 10^2 correct?

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