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October 20, 2014

October 20, 2014

Posted by **anonymous** on Saturday, May 25, 2013 at 10:45am.

1) 400,000 = 4x10^5

2) 5412= 5.412x10^3

3) 0.00056= 5.6x10^-4

4) 0.0000814= 8.14x10^-5

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 11:06amAll correct, well done!

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:08amYES!! thank you

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:11amcan you check this please?

1) 8x10^4

= 80000.

2) 9.82x10^5

= 98,200,000.

3) 9x10^-3

= 0.0009

4) 7.24x10^-6

= 0.00000724

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 11:15am#1 is correct.

The power of 10 refers to the number of positions the decimal point has to be moved,*not*the number of zeroes.

So for #2, it should be

9.82000*100000=982000

Similarly, for #3,

9x10^3=9/1000=0.009

I will leave #4 for you to try.

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:19am.00000724

- scientific notation am i doing it right? -
**Mercy**, Saturday, May 25, 2013 at 11:22amur right

- scientific notation am i doing it right? -
**anonymous**, Saturday, May 25, 2013 at 11:26amYES! thank you

- scientific notation am i doing it right? -
**MathMate to Mercy**, Saturday, May 25, 2013 at 11:29amMerci!

- scientific notation am i doing it right? -
**Mercy**, Saturday, May 25, 2013 at 12:00pmwat

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 12:36pmSorry, finger faster than the brain, forgot to change since last post.

- scientific notation am i doing it right? -
**Mercy**, Saturday, May 25, 2013 at 1:06pmchange what

- scientific notation am i doing it right? -
**MathMate**, Saturday, May 25, 2013 at 5:23pmsignature.

- simplifying -
**jon**, Thursday, August 8, 2013 at 3:10pm(3b)^3

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