Question

Please help and tell me the formula on how to solve

What is the value of the expression
2.8 x 10^7
----------
1.4 x 10^3

Answer 1

Ok so we treat the base with the exponent which in this case is the 10 as a dummy variable. Basically like a variable with exponents

So im gonna replace the 10 in your equation with b so that you can see that all we do is basically use the same rules as exponent rules

\[\frac{2.8b^7}{1.4b^3}\]

The rule goes as follows \( \frac{b^x}{b^y}=b^{x-y}\)
So basically we wld divide the 2.8 by 1.4 and then keep the base and then subtract exponents

Answer 2

Thank you so much for replying, and telling me the formula on how to solve equations like this. Trying to prepare before I enter my new math courses :)

Answer 3

Ok but do you follow???
What wld your answer be .... and its great you got motivation to come well prepared :)

Answer 4

well i'd think the answer would be 2.0 x 10^4 :) if not i'm a total idiot and should re read your statement a couple times for it to seek in

Answer 5

I dont know what fan does but I fanned you :P I see alot of people doing that as a reward

Answer 6

Thank you again for helping me.

Answer 7

lmaooo Yes you are right :D
andd hahahah thanks for the fan :P
That just means you get to see me logging in and out

Answer 8

thanks :) and the curtains are at a close !