Question

Perform the indicated operation without the use of a calculator and express each answer in decimal notation.

A. 6e+13

B. 6000

C. 0.00006

D. 60,000

Attachment in Comments is the Problem.

Answer 1

HINT 1: 4.2 x 10^9 can be rewritten as (42 x 10^5)*(1 x 10^3)

HINT 2: What's 42/7

Answer 2

multiply it?

Answer 3

What's 42/7?

Answer 4

if i Multiply it...it's 294

Answer 5

I'm dumb please explain :S

Answer 6

Find 42 divided by 7

Answer 7

6?

Answer 8

Yes.

So the answer to (42 x 10^5) divided by (7 x 10^5) is just (42 divided by 7) x 10^5

And once you you have that, you multiply it by 10^3, which will give you 6^8

Answer 9

ok

Answer 10

Oh, no. Sorry. When you do (42 x 10^5) divided by (7 x 10^5), you just get 6.

so it should just be 6 x 10^3

Answer 11

Is the answer A? :S 6e+13 b/c i'm a little confused still but I think i got it somewhat : \