Please Help, Dividing terms in scientific notation

See Attatchment

Question

Please Help, Dividing terms in scientific notation

See Attatchment

anonymous · Answer

attachment

anonymous · Answer

Plug them into the equation given.

anonymous · Answer

4.18*10^-7

debbieg · Answer

Well, when you divide the 3.33/7.96 you will get a decimal, so you'll have to multiply that part by 10, so you get a $10^8$ in the numerator.

Now just use rules of exponents to determine n for $10^8/10^{13}$

anonymous · Answer

do you have to follow the rules of significant figures?

anonymous · Answer

no, @ehuman

debbieg · Answer

Not right, @ehuman , and anyway, please don't give answers. OpenStudy values the Learning process - not the ‘Give you an answer’ process. Don’t post only answers - guide the asker to a solution. http://openstudy.com/code-of-conduct

anonymous · Answer

ok the actual value is 4.183417085x10^-7

debbieg · Answer

It is not n=-7. Not sure how you are getting that.

anonymous · Answer

Thank you @DebbieG and @ehuman

anonymous · Answer

the answer is -7

anonymous · Answer

I normally do that deb, who does that without a calculator? yes it is correct. check it.

anonymous · Answer

I didnt think he wanted to see a video of me pushing buttons

debbieg · Answer

Hmm, so it is. OK, sorry.

anonymous · Answer

scientific notation is not the same as exponent rules

debbieg · Answer

I wasn't suggesting a video of you pushing buttons, i was suggesting an explanation of how to find the answer. The METHOD is what he needs to learn, not just a number to plug into his answer form.

anonymous · Answer

Apologies, but if you look back at the last 100 answers I have given, I've probably only done that 2 times. Not a bad average.

anonymous · Answer

the last time I did it the person had a hard time understanding that 2x = 4

debbieg · Answer

Well, sci notation is exponents, and you get the power on the 10 in division by subtracting the exponents, because that is the rule for division of $a^m/a^n$. I think my error was in trying to adjust for the decimal before subtracting the exponents. My bad.

anonymous · Answer

we're human, no worries

anonymous · Answer

Can you guys please help me with this one?

debbieg · Answer

ah, no... I see what I did wrong, I just adjusted in the wrong direction. The extra decimal place would give 10^6 in the num'r, not 10^8. That was my error.

anonymous · Answer

-one half exponent id the same as square root of
|dw:1381712002903:dw|