anonymous
  • anonymous
Evaluate the following. Write your answer in scientific notation. (3 x 107)(6.1 x 103) 18.3 x 1010 18.3 x 1021 1.83 x 1010 1.83 x 1011
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Hero
  • Hero
Multiply 6.1 x 3 Then Multiply 10^7 x 10^3 by adding exponents Finally move the decimal point accordingly. Moving the decimal point on place to the left you increase the exponent by 1 6.1 x 3 = 18.3 10^7 x 10^3 = 10^10 so you have 18.3 x 10^10 But we have to express in scientific notation so: 1.83 x 10^11
anonymous
  • anonymous
thank you so much!
inkyvoyd
  • inkyvoyd
Hero since when do you give direct answers o.o

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inkyvoyd
  • inkyvoyd
also, herro hero!
Hero
  • Hero
I don't consider it giving direct answer as much as I consider it demonstration of the process. After demonstration, then I expect the user to know how to do it. Sometimes you have to demonstrate how to solve a problem.
Hero
  • Hero
If I just simply stated the answer is 1.83 x 10^11, then that is just giving the answer without explanation.
anonymous
  • anonymous
hey so would: Evaluate and write your answer in scientific notation: (2 x 107)(1.3 x 10-3) 2.6 x 10^4 2.6 x 10^-21 2.6 x 10^-4 be 2.6x10^4
inkyvoyd
  • inkyvoyd
mm - I refuse to give out answers explicitly, which is most likely why I'm not gaining any smartscore. But I do believe that even with teh process, many users just look at the answer.
Hero
  • Hero
Well, I guess we're gonna find out what @EmmaH is about.
Hero
  • Hero
@EmmaH, the process of solving this next problem is the same as the previous one.
Hero
  • Hero
The only difference is you have to subtract the exponents instead of add them.
Hero
  • Hero
Everything else is the same.
Hero
  • Hero
Well, it will require some guidance but you should at least be able to multiply the decimals and the exponents. Can you try it please?
anonymous
  • anonymous
ok so 10^7- 10^-3 would that be 10^11?
Hero
  • Hero
No, it would not. Subtract exponents means to subtract 3 from 7.
anonymous
  • anonymous
but isnt it a -3?
Hero
  • Hero
And you don't write it like that. You write it like this: 10^(7-3)
anonymous
  • anonymous
oooooh!
anonymous
  • anonymous
10^4
Hero
  • Hero
Yes, exactly. So which answer choice is it?
anonymous
  • anonymous
the first
Hero
  • Hero
Good job
anonymous
  • anonymous
thanks for the help!!

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