u still there?

 

So on question B would my answer be .32520 x10^2 in scientific notation? If not I will post my work to find out what I did wrong.

 

 

for B, you should've gotten a much bigger exponent than that.
the answer should be
3.25x10^11

scientific notation usually requires you to write the form like this:
#.## x 10^#
notice how on the left side of the decimal, there is only 1 digit.

 

On B I was confused on the positive and negative exponents. I subtracted them. So even if one is positive and the other is negative I add them as if they where the same?

 

i'm writing you a guide on that right now. hold up

 

 

negative exponents can be sent up or down to undo its negative sign.

(10^-2) can be 1/(10^2)

1/(10^-2) can be (10^2)

1/(10^2) = no need to change since it's already positive and simple to solve

(10^2)(10^-4) = (10^2)/(10^4)

yea it's that simple, just move it up or down to get rid of the negative sign. it just makes things easier before you start really solving it.

 

(10^2)(10^-4) = (10^2)/(10^4)

since this is a division of exponents, you subtract the critical number "2" and "4"
like this:
10^(2-4) = 10^-2

again, you can write that as 1/(10^2) just for the hell of getting rid of the negative sign.

 

Ok I am gonna mess around with your guide and see if I can perfect this. You made more sense in 30 minutes then my teacher did in 4 hours lol.