anonymous
  • anonymous
Match number in standard form with its form in scientific notation. Match Term Definition. 0.000042 A) 4.2 × 105 420,000 B) 9.03 × 106 9,030,000 C) 9.03 × 10−6 0.00000903 D) 4.2 × 10−5
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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saifoo.khan
  • saifoo.khan
We have to match them, right?
anonymous
  • anonymous
yes
saifoo.khan
  • saifoo.khan
I edited your question so it can be seen properly. Let's begin with: 4.2 × 105 and convert it into normal form. |dw:1370364139048:dw|

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saifoo.khan
  • saifoo.khan
|dw:1370364182866:dw|
anonymous
  • anonymous
ty i was haveing a little bit of trouple getting it like that lol
saifoo.khan
  • saifoo.khan
Lol. No problem. Hope i help you out in learning this
anonymous
  • anonymous
yea alot :)
saifoo.khan
  • saifoo.khan
|dw:1370364276894:dw||dw:1370364285447:dw|Sorry made a mistake.
anonymous
  • anonymous
its ok :)
saifoo.khan
  • saifoo.khan
So for (a) we can see that it matches 420,000.
saifoo.khan
  • saifoo.khan
I want you to try b. 9.03 × 106
anonymous
  • anonymous
ok
anonymous
  • anonymous
i got 957.18
saifoo.khan
  • saifoo.khan
Noo. 9.03 × 106 means that it;s written in this way: \[\Large 9.03 × 10^6\]
anonymous
  • anonymous
oh ok
anonymous
  • anonymous
lol ok :)
saifoo.khan
  • saifoo.khan
Please see this video then try to attempt it. You'll be a boss at this then. ;D https://www.khanacademy.org/math/arithmetic/exponents-radicals/scientific-notation/v/scientific-notation-examples
saifoo.khan
  • saifoo.khan
Try it then. I'll check your answer.
anonymous
  • anonymous
hey i had watched the video and i had tryed the problem but i dont understand??
anonymous
  • anonymous
wait i think i found it out :P
saifoo.khan
  • saifoo.khan
Umm. Alright. So let me give you an overview. When we were given 4.2 × 10^5, it meant that some number is compressed and written into (scientific form). Now we have to unpack the number and write it in normal notation. Do you agree?
anonymous
  • anonymous
yea
saifoo.khan
  • saifoo.khan
Alright. so 4.2 × 10^5, since the exponent is POSITIVE FIVE, we have to shift the decimal place FIVE times to the RIGHT. Agree?
anonymous
  • anonymous
the answer is 9,030,000 right :)
anonymous
  • anonymous
for 9.03 x 106
saifoo.khan
  • saifoo.khan
Awesome! You learnt it. Now when we have NEGATIVE exponent, we just have to move the decimal to the LEFT.
anonymous
  • anonymous
ok
anonymous
  • anonymous
ok so i think for 9.03 × 10−6 it would be 0.00000903 right??
saifoo.khan
  • saifoo.khan
Yes ma'am.
anonymous
  • anonymous
yay :)
anonymous
  • anonymous
lol
saifoo.khan
  • saifoo.khan
XD
anonymous
  • anonymous
ok so the last one 4.2 × 10−5 would be 0.000042 right :P
saifoo.khan
  • saifoo.khan
Yep.

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